NANOlab Center of Excellence literature database -- Query Results

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Author	Bultinck, E.; Bogaerts, A.
Title	Characterization of an Ar/O₂ magnetron plasma by a multi-species Monte Carlo model			Type	A1 Journal article
Year	2011	Publication	Plasma sources science and technology	Abbreviated Journal	Plasma Sources Sci T
Volume	20	Issue	4	Pages	045013-045013,12
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	A combined Monte Carlo (MC)/analytical surface model is developed to study the plasma processes occurring during the reactive sputter deposition of TiOx thin films. This model describes the important plasma species with a MC approach (i.e. electrons, Ar+ ions, {\rm O}_2
Address
Corporate Author				Thesis
Publisher	Institute of Physics	Place of Publication	Bristol	Editor
Language		Wos	000295829800015	Publication Date	2011-06-14
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0963-0252;1361-6595;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.302	Times cited	7	Open Access
Notes				Approved	Most recent IF: 3.302; 2011 IF: 2.521
Call Number	UA @ lucian @ c:irua:89732			Serial	316
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Author	d' Hondt, H.
Title	Characterization of anion deficient perovskites			Type	Doctoral thesis
Year	2011	Publication		Abbreviated Journal
Volume		Issue		Pages
Keywords	Doctoral thesis; Electron microscopy for materials research (EMAT)
Abstract
Address
Corporate Author				Thesis
Publisher		Place of Publication	Antwerpen	Editor
Language		Wos		Publication Date	0000-00-00
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN		ISBN		Additional Links	UA library record
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:87905			Serial	317
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Author	Tirumalasetty, G.K.; van Huis, M.A.; Fang, C.M.; Xu, Q.; Tichelaar, F.D.; Hanlon, D.N.; Sietsma, J.; Zandbergen, H.W.
Title	Characterization of NbC and (Nb, Ti)N nanoprecipitates in TRIP assisted multiphase steels			Type	A1 Journal article
Year	2011	Publication	Acta materialia	Abbreviated Journal	Acta Mater
Volume	59	Issue	19	Pages	7406-7415
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Multiphase steels utilising composite strengthening may be further strengthened via grain refinement or precipitation by the addition of microalloying elements. In this study a Nb microalloyed steel comprising martensite, bainite and retained austenite has been studied. By means of transmission electron microscopy (TEM) we have investigated the size distribution and the structural properties of (Nb, Ti)N and NbC precipitates, their occurrence in the various steel phases, and their relationship with the Fe matrix. (Nb, Ti)N precipitates were found in ferrite, martensite, and bainite, while NbC precipitates were found only in ferrite. All NbC precipitates were found to be small (520 nm in size) and to have a face centred cubic (fcc) crystal structure with lattice parameter a = 4.36 ± 0.05 Å. In contrast, the (Nb, Ti)N precipitates were found to have a broader size range (5150 nm) and to have a fcc crystal structure with lattice parameter a = 8.09 ± 0.05 Å. While the NbC precipitates were found to be randomly oriented, the (Nb, Ti)N precipitates have a well-defined NishiyamaWasserman orientation relationship with the ferrite matrix. An analysis of the lattice mismatch suggests that the latter precipitates have a high potential for effective strengthening. Density functional theory calculations were performed for various stoichiometries of NbCx and NbxTiyNz phases and the comparison with experimental data indicates that both the carbides and nitrides are deficient in C and N content.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Oxford	Editor
Language		Wos	000296405200026	Publication Date	2011-09-29
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1359-6454;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	5.301	Times cited	58	Open Access
Notes				Approved	Most recent IF: 5.301; 2011 IF: 3.755
Call Number	UA @ lucian @ c:irua:93297			Serial	328
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Author	Wang, Y.; Yu, M.Y.; Chen, Z.Y.
Title	Coherent relativistic wake wave of a charged object moving steadily in a plasma			Type	A1 Journal article
Year	2011	Publication	Physica scripta	Abbreviated Journal	Phys Scripta
Volume	84	Issue	2	Pages	025501,1-025501,5
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	Nonlinear electron plasma waves driven by a finite-charged particle pulse or rigid object moving at relativistic speeds are investigated. Quasi-stationary smooth and spiky wake waves comoving with the object are found. Localized soliton-like solutions are also shown to exist. Relativistic effects tend to prevent their formation because of the electron mass increase. The application of the very-large-amplitude wake density waves as a source of ultrahigh-energy cosmic-ray events is discussed.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Stockholm	Editor
Language		Wos	000294727900017	Publication Date	2011-07-09
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0031-8949;1402-4896;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.28	Times cited	5	Open Access
Notes				Approved	Most recent IF: 1.28; 2011 IF: 1.204
Call Number	UA @ lucian @ c:irua:92435			Serial	381
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Author	Pape, E.; Bezerra, T.N.; Vanneste, H.; Heeschen, K.; Moodley, L.; Leroux, F.; van Breugel, P.; Vanreusel, A.
Title	Community structure and feeding preference of nematodes associated with methane seepage at the Darwin mud volcano (Gulf of Cádiz)			Type	A1 Journal article
Year	2011	Publication	Marine ecology progress series	Abbreviated Journal	Mar Ecol Prog Ser
Volume	438	Issue		Pages	71-83
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	We sampled the Darwin mud volcano (MV) for meiofaunal community and trophic structure in relation to pore-water geochemistry along a 10 m transect from a seep site on the rim of the crater towards the MV slope. Pore-water profiles indicated considerable variation in upward methane (CH4) flow among sediment cores taken along the transect, with highest flux in the seep sediment core, gradually decreasing along the transect, to no CH4 flux in the core taken at a 5 m distance. Low sulphate concentrations and high levels of total alkalinity and sulphide (H2S) suggested that anaerobic oxidation of methane (AOM) occurred close to the sediment surface in the seep sediment core. High H2S levels had a genus- and species-specific impact on meiofaunal densities. Nematode genus composition varied gradually between sediment cores, with the genus Sabatieria dominating almost all sediment cores. However, genus diversity increased with increasing distance from the seep site. These limited data suggest that the community structure of seep meiofauna is highly dependent on local (a)biotic habitat characteristics, and a typical seep meiofaunal community cannot be delineated. Stable isotope values suggested the nematode diet up to 10 m from the seep site included thiotrophic carbon. The thicker hemipelagic sediment layer (photosynthetic carbon), the increased trophic diversity, and the heavier nematode δ13C farther from the seep site suggest a decrease in thiotrophy and an increase in photosynthetic carbon in the nematode diet.
Address
Corporate Author				Thesis
Publisher	Inter-research	Place of Publication	Halstenbek	Editor
Language		Wos	000295616000006	Publication Date	2011-07-06
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0171-8630;1616-1599;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.292	Times cited	18	Open Access
Notes				Approved	Most recent IF: 2.292; 2011 IF: 2.711
Call Number	UA @ lucian @ c:irua:93682			Serial	414
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Author	Verleysen, E.; Bender, H.; Richard, O.; Schryvers, D.; Vandervorst, W.
Title	Compositional characterization of nickel silicides by HAADF-STEM imaging			Type	A1 Journal article
Year	2011	Publication	Journal of materials science	Abbreviated Journal	J Mater Sci
Volume	46	Issue	7	Pages	2001-2008
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	A methodology for the quantitative compositional characterization of nickel silicides by high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) imaging is presented. HAADF-STEM images of a set of nickel silicide reference samples Ni3Si, Ni31Si12, Ni2Si, NiSi and NiSi2 are taken at identical experimental conditions. The correlation between sample thickness and HAADF-STEM intensity is discussed. In order to quantify the relationship between the experimental Z-contrast intensities and the composition of the analysed layers, the ratio of the HAADF-STEM intensity to the sample thickness or to the intensity of the silicon substrate is determined for each nickel silicide reference sample. Diffraction contrast is still detected on the HAADF-STEM images, even though the detector is set at the largest possible detection angle. The influence on the quantification results of intensity fluctuations caused by diffraction contrast and channelling is examined. The methodology is applied to FUSI gate devices and to horizontal TFET devices with different nickel silicides formed on source, gate and drain. It is shown that, if the elements which are present are known, this methodology allows a fast quantitative 2-dimensional compositional analysis.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000286633000002	Publication Date	2011-01-06
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-2461;1573-4803;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.599	Times cited	1	Open Access
Notes				Approved	Most recent IF: 2.599; 2011 IF: 2.015
Call Number	UA @ lucian @ c:irua:88950			Serial	446
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Author	Parente, A.; Gorlé, C.; van Beeck, J.; Benocci, C.
Title	A comprehensive modelling approach for the neutral atmospheric boundary layer : consistent inflow conditions, wall function and turbulence model			Type	A1 Journal article
Year	2011	Publication	Boundary-layer meteorology	Abbreviated Journal	Bound-Lay Meteorol
Volume	140	Issue	3	Pages	411-428
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	We report on a novel approach for the Reynolds-averaged Navier-Stokes (RANS) modelling of the neutral atmospheric boundary layer (ABL), using the standard k− turbulence model. A new inlet condition for turbulent kinetic energy is analytically derived from the solution of the k− model transport equations, resulting in a consistent set of fully developed inlet conditions for the neutral ABL. A modification of the standard k− model is also employed to ensure consistency between the inlet conditions and the turbulence model. In particular, the turbulence model constant C μ is generalized as a location-dependent parameter, and a source term is introduced in the transport equation for the turbulent dissipation rate. The application of the proposed methodology to cases involving obstacles in the flow is made possible through the implementation of an algorithm, which automatically switches the turbulence model formulation when going from the region where the ABL is undisturbed to the region directly affected by the building. Finally, the model is completed with a slightly modified version of the Richards and Hoxey rough-wall boundary condition. The methodology is implemented and tested in the commercial code Ansys Fluent 12.1. Results are presented for a neutral boundary layer over flat terrain and for the flow around a single building immersed in an ABL.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Dordrecht	Editor
Language		Wos	000293923800004	Publication Date	2011-05-25
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0006-8314;1573-1472;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.573	Times cited	54	Open Access
Notes				Approved	Most recent IF: 2.573; 2011 IF: 1.737
Call Number	UA @ lucian @ c:irua:92341			Serial	450
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Author	Bogaerts, A.; Eckert, M.; Mao, M.; Neyts, E.
Title	Computer modelling of the plasma chemistry and plasma-based growth mechanisms for nanostructured materials			Type	A1 Journal article
Year	2011	Publication	Journal of physics: D: applied physics	Abbreviated Journal	J Phys D Appl Phys
Volume	44	Issue	17	Pages	174030-174030,16
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	In this review paper, an overview is given of different modelling efforts for plasmas used for the formation and growth of nanostructured materials. This includes both the plasma chemistry, providing information on the precursors for nanostructure formation, as well as the growth processes itself. We limit ourselves to carbon (and silicon) nanostructures. Examples of the plasma modelling comprise nanoparticle formation in silane and hydrocarbon plasmas, as well as the plasma chemistry giving rise to carbon nanostructure formation, such as (ultra)nanocrystalline diamond ((U)NCD) and carbon nanotubes (CNTs). The second part of the paper deals with the simulation of the (plasma-based) growth mechanisms of the same carbon nanostructures, i.e. (U)NCD and CNTs, both by mechanistic modelling and detailed atomistic simulations.
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000289512700030	Publication Date	2011-04-15
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-3727;1361-6463;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.588	Times cited	25	Open Access
Notes				Approved	Most recent IF: 2.588; 2011 IF: 2.544
Call Number	UA @ lucian @ c:irua:88364			Serial	463
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Author	Tinck, S.; Bogaerts, A.
Title	Computer simulations of an oxygen inductively coupled plasma used for plasma-assisted atomic layer deposition			Type	A1 Journal article
Year	2011	Publication	Plasma sources science and technology	Abbreviated Journal	Plasma Sources Sci T
Volume	20	Issue	1	Pages	015008-015008,10
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	In this paper, an O2 inductively coupled plasma used for plasma enhanced atomic layer deposition of Al2O3 thin films is investigated by means of modeling. This work intends to provide more information about basic plasma properties such as species densities and species fluxes to the substrate as a function of power and pressure, which might be hard to measure experimentally. For this purpose, a hybrid model developed by Kushner et al is applied to calculate the plasma characteristics in the reactor volume for different chamber pressures ranging from 1 to 10 mTorr and different coil powers ranging from 50 to 500 W. Density profiles of the various oxygen containing plasma species are reported as well as fluxes to the substrate under various operating conditions. Furthermore, different orientations of the substrate, which can be placed vertically or horizontally in the reactor, are taken into account. In addition, special attention is paid to the recombination process of atomic oxygen on the different reactor walls under the stated operating conditions. From this work it can be concluded that the plasma properties change significantly in different locations of the reactor. The plasma density near the cylindrical coil is high, while it is almost negligible in the neighborhood of the substrate. Ion and excited species fluxes to the substrate are found to be very low and negligible. Finally, the orientation of the substrate has a minor effect on the flux of O2, while it has a significant effect on the flux of O. In the horizontal configuration, the flux of atomic oxygen can be up to one order of magnitude lower than in the vertical configuration.
Address
Corporate Author				Thesis
Publisher	Institute of Physics	Place of Publication	Bristol	Editor
Language		Wos	000286592200009	Publication Date	2011-01-08
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0963-0252;1361-6595;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.302	Times cited	11	Open Access
Notes				Approved	Most recent IF: 3.302; 2011 IF: 2.521
Call Number	UA @ lucian @ c:irua:85285			Serial	467
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Author	Bogaerts, A.; Aghaei, M.; Autrique, D.; Lindner, H.; Chen, Z.; Wendelen, W.
Title	Computer simulations of laser ablation, plume expansion and plasma formation			Type	H1 Book chapter
Year	2011	Publication		Abbreviated Journal
Volume		Issue		Pages	1-10
Keywords	H1 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract
Address
Corporate Author				Thesis
Publisher	Trans Tech	Place of Publication	Aedermannsdorf	Editor
Language		Wos	000292658900001	Publication Date	2011-04-20
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1662-8985;	ISBN	978-3-03785-081-7	Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor		Times cited	8	Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:88340			Serial	470
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Author	Sullivan, E.; Hadermann, J.; Greaves, C.
Title	Crystallographic and magnetic characterisation of the brownmillerite Sr₂Co₂O₅			Type	A1 Journal article
Year	2011	Publication	Journal of solid state chemistry	Abbreviated Journal	J Solid State Chem
Volume	184	Issue	3	Pages	649-654
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Sr2Co2O5 with the perovskite-related brownmillerite structure has been synthesised via quenching, with the orthorhombic unit cell parameters a=5.4639(3) Å, b=15.6486(8) Å and c=5.5667(3) Å based on refinement of neutron powder diffraction data collected at 4 K. Electron microscopy revealed LRLR-intralayer ordering of chain orientations, which require a doubling of the unit cell along the c-parameter, consistent with the assignment of the space group Pcmb. However, on the length scale pertinent to NPD, no long-range order is observed and the disordered space group Imma appears more appropriate. The magnetic structure corresponds to G-type order with a moment of 3.00(4) μB directed along [1 0 0].
Address
Corporate Author				Thesis
Publisher		Place of Publication	London	Editor
Language		Wos	000288587800026	Publication Date	2011-01-27
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0022-4596;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.299	Times cited	19	Open Access
Notes				Approved	Most recent IF: 2.299; 2011 IF: 2.159
Call Number	UA @ lucian @ c:irua:89650			Serial	584
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Author	Neyts, E.; Maeyens, A.; Pourtois, G.; Bogaerts, A.
Title	A density-functional theory simulation of the formation of Ni-doped fullerenes by ion implantation			Type	A1 Journal article
Year	2011	Publication	Carbon	Abbreviated Journal	Carbon
Volume	49	Issue	3	Pages	1013-1017
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	Using self-consistent KohnSham density-functional theory molecular dynamics simulations, we demonstrate the theoretical possibility to synthesize NiC60, the incarfullerene Ni@C60 and the heterofullerene C59Ni in an ion implantation setup. The corresponding formation mechanisms of all three complexes are elucidated as a function of the ion implantation energy and impact location, suggesting possible routes for selectively synthesizing these complexes.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Oxford	Editor
Language		Wos	000286683500032	Publication Date	2010-11-14
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0008-6223;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	6.337	Times cited	13	Open Access
Notes				Approved	Most recent IF: 6.337; 2011 IF: 5.378
Call Number	UA @ lucian @ c:irua:85139			Serial	639
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Author	Razdobarin, A.G.; Mukhin, E.E.; Semenov, V.V.; Tolstyakov, S.Y.; Kochergin, M.M.; Kurskiev, G.S.; Podushnikova, K.A.; Kirilenko, D.A.; Sitnikova, A.A.; Konovalov, V.G.; Solodovchenko, S.I.; Nekhaieva, O.M.; Skorik, O.A.; Bondarenko, V.N.; Voitsenya, V.S.;
Title	Diagnostic mirrors with transparent protection layer for ITER			Type	A1 Journal article
Year	2011	Publication	Fusion engineering and design	Abbreviated Journal	Fusion Eng Des
Volume	86	Issue	6-8	Pages	1341-1344
Keywords	A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Abstract	Fast degradation of in-vessel optics is one of the most serious problems for all optical diagnostics in ITER. To provide the resistance to mechanical and thermal stresses along with a high stability of optical characteristics under deposition-dominated conditions we suggest using high-reflective metallic (Ag or Al) film mirrors coated on silicon substrate and protected with thin oxide film in the divertor Thomson Scattering (TS) diagnostics. The mirrors coated with Al2O3 and ZrO2 films were tested under irradiation by deuterium ions. The experimental results on the oxide films sputtering are discussed in the context of their applicability for the first mirror protection in ITER.
Address
Corporate Author				Thesis
Publisher	Elsevier science sa	Place of Publication	Amsterdam	Editor
Language		Wos	000297426500203	Publication Date	2011-03-17
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0920-3796;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.319	Times cited	6	Open Access
Notes				Approved	Most recent IF: 1.319; 2011 IF: 1.490
Call Number	UA @ lucian @ c:irua:93631			Serial	686
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Author	De Bie, C.; Martens, T.; van Dijk, J.; Paulussen, S.; Verheyde, B.; Corthals, S.; Bogaerts, A.
Title	Dielectric barrier discharges used for the conversion of greenhouse gases: modeling the plasma chemistry by fluid simulations			Type	A1 Journal article
Year	2011	Publication	Plasma sources science and technology	Abbreviated Journal	Plasma Sources Sci T
Volume	20	Issue	2	Pages	024008,1-024008,11
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	The conversion of methane to value-added chemicals and fuels is considered to be one of the challenges of the 21st century. In this paper we study, by means of fluid modeling, the conversion of methane to higher hydrocarbons or oxygenates by partial oxidation with CO2 or O2 in a dielectric barrier discharge. Sixty-nine different plasma species (electrons, ions, molecules, radicals) are included in the model, as well as a comprehensive set of chemical reactions. The calculation results presented in this paper include the conversion of the reactants and the yields of the reaction products as a function of residence time in the reactor, for different gas mixing ratios. Syngas (i.e. H2 + CO) and higher hydrocarbons (C2Hx) are typically found to be important reaction products.
Address
Corporate Author				Thesis
Publisher	Institute of Physics	Place of Publication	Bristol	Editor
Language		Wos	000290719900009	Publication Date	2011-04-02
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0963-0252;1361-6595;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.302	Times cited	38	Open Access
Notes				Approved	Most recent IF: 3.302; 2011 IF: 2.521
Call Number	UA @ lucian @ c:irua:87868			Serial	689
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Author	Khalil-Allafi, J.; Amin-Ahmadi, B.
Title	Effect of mold hardness on microstructure and contraction porosity in ductile cast iron			Type	A1 Journal article
Year	2011	Publication	Journal of iron and steel research international	Abbreviated Journal	J Iron Steel Res Int
Volume	18	Issue	4	Pages	44-47
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The effect of mold hardness on the microstructure of ductile iron and the contraction porosity was investigated. Molds with different hardnesses (0.41, 0.48, 0.55, 0.62 MPa) and a sand mold prepared by Co2 method were used. The influence of silicon content on the induced expansion pressure owing to the formation of graphite was also investigated. The contraction during solidification can be compensated by an induced expansion owing to the graphite relief when the hardness of mold increases; therefore, the possibility of achieving a sound product without using any riser increases.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos		Publication Date	2011-05-01
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1006-706X;	ISBN		Additional Links	UA library record
Impact Factor	0.836	Times cited	1	Open Access
Notes				Approved	Most recent IF: 0.836; 2011 IF: 0.213
Call Number	UA @ lucian @ c:irua:122044			Serial	823
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Author	Hezareh, T.; Razavi, F.S.; Kremer, R.K.; Habermeier, H.-U.; Lebedev, O.I.; Kirilenko, D.; Van Tendeloo, G.
Title	Effect of PbZr_0.52Ti_0.48O₃ thin layer on structure, electronic and magnetic properties of La_0.65Sr_0.35MnO₃ and La_0.65Ca_0.30MnO₃ thin-films			Type	A1 Journal article
Year	2011	Publication	Journal of applied physics	Abbreviated Journal	J Appl Phys
Volume	109	Issue	11	Pages	113707,1-113707,8
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Epitaxial thin film heterostructures of high dielectric PbZr<sub>1-x</sub>Ti<sub>x</sub>O<sub>3</sub> (PZT) and La<sub>1-x</sub>A<sub>x</sub>MnO<sub>3</sub> (A-divalent alkaline earth metals such as Sr (LSMO) and Ca (LCMO)) were grown on SrTiO<sub>3</sub> substrates and their structure, temperature dependence of electrical resistivity, and magnetization were investigated as a function of the thickness of the LSMO(LCMO) layer. The microstructures of the samples were analyzed by TEM. By applying an electric field across the PZT layer, we applied a ferrodistortive pressure on the manganite layer and studied the correlations between lattice distortion and electric transport and magnetic properties of the CMR materials.
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000292214700069	Publication Date	2011-06-06
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0021-8979;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.068	Times cited	4	Open Access
Notes				Approved	Most recent IF: 2.068; 2011 IF: 2.168
Call Number	UA @ lucian @ c:irua:90964			Serial	843
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Author	Houssa, M.; Scalise, E.; Sankaran, K.; Pourtois, G.; Afanas'ev, V.V.; Stesmans, A.
Title	Electronic properties of hydrogenated silicene and germanene			Type	A1 Journal article
Year	2011	Publication	Applied physics letters	Abbreviated Journal	Appl Phys Lett
Volume	98	Issue	22	Pages	223107
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	The electronic properties of hydrogenated silicene and germanene, so called silicane and germanane, respectively, are investigated using first-principles calculations based on density functional theory. Two different atomic configurations are found to be stable and energetically degenerate. Upon the adsorption of hydrogen, an energy gap opens in silicene and germanene. Their energy gaps are next computed using the HSE hybrid functional as well as the G(0)W(0) many-body perturbation method. These materials are found to be wide band-gap semiconductors, the type of gap in silicane (direct or indirect) depending on its atomic configuration. Germanane is predicted to be a direct-gap material, independent of its atomic configuration, with an average energy gap of about 3.2 eV, this material thus being potentially interesting for optoelectronic applications in the blue/violet spectral range. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3595682]
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000291405700057	Publication Date	2011-06-03
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0003-6951;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.411	Times cited	63	Open Access
Notes				Approved	Most recent IF: 3.411; 2011 IF: 3.844
Call Number	UA @ lucian @ c:irua:105586			Serial	1003
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Author	Yusupov, M.; Bultinck, E.; Depla, D.; Bogaerts, A.
Title	Elucidating the asymmetric behavior of the discharge in a dual magnetron sputter deposition system			Type	A1 Journal article
Year	2011	Publication	Applied physics letters	Abbreviated Journal	Appl Phys Lett
Volume	98	Issue	13	Pages	131502-131502,3
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	A magnetron discharge is characterized by drifts of the charged particles guiding center, caused by the magnetic field, in contrast to unmagnetized discharges. Because of these drifts, a pronounced asymmetry of the discharge can be observed in a dual magnetron setup. In this work, it is found that the shape of the discharge in a dual magnetron configuration depends on the magnetic field configuration. In a closed configuration, strong drifts were observed in one preferential direction, whereas in a mirror configuration the deflection of the discharge was not so pronounced. Our calculations confirm experimental observations.
Address
Corporate Author				Thesis
Publisher	American Institute of Physics	Place of Publication	New York, N.Y.	Editor
Language		Wos	000289153600017	Publication Date	2011-04-01
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0003-6951;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.411	Times cited	4	Open Access
Notes				Approved	Most recent IF: 3.411; 2011 IF: 3.844
Call Number	UA @ lucian @ c:irua:87867			Serial	1026
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Author	Hamelet, S.; Casas-Cabanas, M.; Dupont, L.; Davoisne, C.; Tarascon, J.M.; Masquelier, C.
Title	Existence of superstructures due to large amounts of Fe vacancies in the LiFePO₄-type framework			Type	A1 Journal article
Year	2011	Publication	Chemistry of materials	Abbreviated Journal	Chem Mater
Volume	23	Issue	1	Pages	32-38
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	LiFePO4 has been under intense scrutiny over the past decade because it stands as an attractive positive electrode material for the next generation of Li-ion batteries to power electric vehicles and hybrid electric vehicles, hence the importance of its thermal behavior. The reactivity of LiFePO4 with air at moderate temperatures is shown to be dependent on its particle size. For nanosized materials, a progressive displacement of Fe from the core structure leading to a composite made of nanosize Fe2O3 and highly defective, oxidized LixFeyPO4 compositions, among which the “ideal” formula LiFe2/3PO4. Herein we report, from both temperature-controlled X-ray diffraction and electronic diffraction microscopy, that these off-stoichiometry olivine-type compounds show a defect ordering resulting in the formation of a superstructure. Such a finding shows striking similarities with the temperature-driven oxidation of fayalite Fe2SiO4 (another olivine) to structurally defective laihunite, reported in the literature three decades ago.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000285726900007	Publication Date	2010-12-14
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0897-4756;1520-5002;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	9.466	Times cited	30	Open Access
Notes				Approved	Most recent IF: 9.466; 2011 IF: 7.286
Call Number	UA @ lucian @ c:irua:105605			Serial	1130
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Author	Kirsanova, M.A.; Olenev, A.V.; Abakumov, A.M.; Bykov, M.A.; Shevelkov, A.V.
Title	Extension of the clathrate family : the type X clathrate Ge₇₉P₂₉S₁₈Te₆			Type	A1 Journal article
Year	2011	Publication	Angewandte Chemie: international edition in English	Abbreviated Journal	Angew Chem Int Edit
Volume	50	Issue	10	Pages	2371-2374
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Now they are 10! The title compound displays a new type of crystal structure and is labeled clathrate X according to the general classification of clathrate structures. In contrast to typical clathrates, this compound has three-coordinate atoms within the framework and combines distorted 24-vertex polyhedra (see picture, green) centered around tellurium guest atoms with very irregular 10-vertex polyhedra around sulfur atoms (yellow).
Address
Corporate Author				Thesis
Publisher		Place of Publication	Weinheim	Editor
Language		Wos	000288036300033	Publication Date	2011-01-31
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1433-7851;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	11.994	Times cited	23	Open Access
Notes				Approved	Most recent IF: 11.994; 2011 IF: 13.455
Call Number	UA @ lucian @ c:irua:88793			Serial	1158
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Author	Gasparotto, A.; Barreca, D.; Bekermann, D.; Devi, A.; Fischer, R.A.; Fornasiero, P.; Gombac, V.; Lebedev, O.I.; Maccato, C.; Montini, T.; Van Tendeloo, G.; Tondello, E.
Title	F-doped Co₃O₄ photocatalysts for sustainable H₂ generation from water/ethanol			Type	A1 Journal article
Year	2011	Publication	Journal of the American Chemical Society	Abbreviated Journal	J Am Chem Soc
Volume	133	Issue	48	Pages	19362-19365
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	p-Type Co3O4 nanostructured films are synthesized by a plasma-assisted process and tested in the photocatalytic production of H2 from water/ethanol solutions under both near-UV and solar irradiation. It is demonstrated that the introduction of fluorine into p-type Co3O4 results in a remarkable performance improvement with respect to the corresponding undoped oxide, highlighting F-doped Co3O4 films as highly promising systems for hydrogen generation. Notably, the obtained yields were among the best ever reported for similar semiconductor-based photocatalytic processes.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000297606500027	Publication Date	2011-11-04
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0002-7863;1520-5126;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	13.858	Times cited	114	Open Access
Notes				Approved	Most recent IF: 13.858; 2011 IF: 9.907
Call Number	UA @ lucian @ c:irua:93628			Serial	1164
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Author	Cao, S.; Nishida, M.; Schryvers, D.
Title	FIB/SEM applied to quantitative 3D analysis of precipitates in Ni-Ti			Type	A1 Journal article
Year	2011	Publication	Diffusion and defect data : solid state data : part B : solid state phenomena	Abbreviated Journal
Volume	172/174	Issue		Pages	1284-1289
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Ni4Ti3 precipitates with a heterogeneous distribution growing in a polycrystalline Ni50.8Ti49.2 alloy have been investigated in a Dual-Beam FIB/SEM system. The volume ratio, mean volume, central plane diameter, thickness, aspect ratio and sphericity of the precipitates in the grain interior as well as near to the grain boundary were measured or calculated. The morphology of the precipitates was classified according to the Zingg scheme. The multistage martensitic transformation occurring in these kinds of samples is interpreted in view of the data of this heterogeneous microstructure of matrix and precipitates.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Vaduz	Editor
Language		Wos	000303359700199	Publication Date	2011-07-04
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1662-9779;	ISBN		Additional Links	UA library record; WoS full record
Impact Factor		Times cited		Open Access
Notes				Approved	Most recent IF: NA
Call Number	UA @ lucian @ c:irua:90152			Serial	1188
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Author	De Bie, C.; Verheyde, B.; Martens, T.; van Dijk, J.; Paulussen, S.; Bogaerts, A.
Title	Fluid modeling of the conversion of methane into higher hydrocarbons in an atmospheric pressure dielectric barrier discharge			Type	A1 Journal article
Year	2011	Publication	Plasma processes and polymers	Abbreviated Journal	Plasma Process Polym
Volume	8	Issue	11	Pages	1033-1058
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	A one-dimensional fluid model for a dielectric barrier discharge in methane, used as a chemical reactor for gas conversion, is developed. The model describes the gas phase chemistry governing the conversion process of methane to higher hydrocarbons. The spatially averaged densities of the various plasma species as a function of time are discussed. Besides, the conversion of methane and the yields of the reaction products as a function of the residence time in the reactor are shown and compared with experimental data. Higher hydrocarbons (C2Hy and C3Hy) and hydrogen gas are typically found to be important reaction products. Furthermore, the main underlying reaction pathways are determined.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Weinheim	Editor
Language		Wos	000297745500005	Publication Date	2011-07-11
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1612-8850;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.846	Times cited	70	Open Access
Notes				Approved	Most recent IF: 2.846; 2011 IF: 2.468
Call Number	UA @ lucian @ c:irua:92443			Serial	1227
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Author	Si, X.-J.; Zhao, S.-X.; Xu, X.; Bogaerts, A.; Wang, Y.-N.
Title	Fluid simulations of frequency effects on nonlinear harmonics in inductively coupled plasma			Type	A1 Journal article
Year	2011	Publication	Physics of plasmas	Abbreviated Journal	Phys Plasmas
Volume	18	Issue	3	Pages	033504-033504,9
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	A fluid model is self-consistently established to investigate the harmonic effects in an inductively coupled plasma, where the electromagnetic field is solved by the finite difference time domain technique. The spatiotemporal distribution of harmonic current density, harmonic potential, and other plasma quantities, such as radio frequency power deposition, plasma density, and electron temperature, have been investigated. Distinct differences in current density have been observed when calculated with and without Lorentz force, which indicates that the nonlinear Lorentz force plays an important role in the harmonic effects, especially at low frequencies. Moreover, the even harmonics are larger than the odd harmonics both in the current density and the potential. Finally, the dependence of various plasma quantities with and without the Lorentz force on various driving frequencies is also examined. It is shown that the deposited power density decreases and the depth of penetration increases slightly because of the Lorentz force. The electron density increases distinctly while the electron temperature remains almost the same when the Lorentz force is taken into account.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Woodbury, N.Y.	Editor
Language		Wos	000289151900073	Publication Date	2011-03-18
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1070-664X;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	2.115	Times cited	7	Open Access
Notes				Approved	Most recent IF: 2.115; 2011 IF: 2.147
Call Number	UA @ lucian @ c:irua:87876			Serial	1233
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Author	Navulla, A.; Tsirlin, A.A.; Abakumov, A.M.; Shpanchenko, R.V.; Zhang, H.; Dikarev, E.V.
Title	Fluorinated heterometallic \beta-diketonates as volatile single-source precursors for the synthesis of low-valent mixed-metal fluorides			Type	A1 Journal article
Year	2011	Publication	Journal of the American Chemical Society	Abbreviated Journal	J Am Chem Soc
Volume	133	Issue	4	Pages	692-694
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Hexafluoroacetylacetonates that contain lead and divalent first-row transition metals, PbM(hfac)4 (M = Ni (1), Co (2), Mn (3), Fe (4), and Zn (5)), have been synthesized. Their heterometallic structures are held together by strong Lewis acid−base interactions between metal atoms and diketonate ligands acting in chelating−bridging fashion. Compounds 1−5 are highly volatile and decompose below 350 °C. Fluorinated heterometallic β-diketonates have been used for the first time as volatile single-source precursors for the preparation of mixed-metal fluorides. Complex fluorides of composition Pb2MF6 have been obtained by decomposition of 1−5 in a two-zone furnace under low-pressure nitrogen flow. Lead−transition metal fluorides conform to orthorhombically distorted Aurivillius-type structure with layers of corner-sharing [MF6] octahedra separated by α-PbO-type (Pb2F2) blocks. Pb2NiF6 and Pb2CoF6 were found to exhibit magnetic ordering below 80 and 43 K, respectively. The ordering is antiferromagnetic, with a weak, uncompensated moment due to the canting of spins. The Pb2MF6 fluorides represent a new class of prospective magnetoelectric materials combining transition metals and lone-pair main-group cations.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000287295300015	Publication Date	2010-12-21
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0002-7863;1520-5126;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	13.858	Times cited	28	Open Access
Notes				Approved	Most recent IF: 13.858; 2011 IF: 9.907
Call Number	UA @ lucian @ c:irua:88820			Serial	1236
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Author	de Clippel, F.; Harkiolakis, A.; Vosch, T.; Ke, X.; Giebeler, L.; Oswald, S.; Houthoofd, K.; Jammaer, J.; Van Tendeloo, G.; Martens, J.A.; Jacobs, P.A.; Baron, G.V.; Sels, B.F.; Denayer, J.F.M.
Title	Graphitic nanocrystals inside the pores of mesoporous silica : synthesis, characterization and an adsorption study			Type	A1 Journal article
Year	2011	Publication	Microporous and mesoporous materials: zeolites, clays, carbons and related materials	Abbreviated Journal	Micropor Mesopor Mat
Volume	144	Issue	1/3	Pages	120-133
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	This work presents a new carbonsilica hybrid material, denoted as CSM, with remarkable sorption properties. It consists of intraporous graphitic nanocrystals grown in the pores of mesoporous silica. CSM is obtained by a subtle incipient wetness impregnation of Al-containing mesoporous silica with furfuryl alcohol (FA)/hemelitol solutions. Both the volume match of the impregnation solution with that of the silica template pore volume, and the presence of Al3+ in the silica, are crucial to polymerize FA selectively inside the mesopores. Carbonization of the intraporous polymer was then performed by pyrolysis under He up to 1273 K. The resulting CSMs were examined by SEM, HRTEM, 27Al MAS NMR, N2 adsorption, XRD, TGA, TPD, XPS, pycnometry and Raman spectroscopy. Mildly oxidized graphitic-like carbon nanoblocks, consisting of a few graphene-like sheets, were thus identified inside the template mesopores. Random stacking of these carbon crystallites generates microporosity resulting in biporous materials at low carbon content and microporous materials at high carbon loadings. Very narrow pore distributions were obtained when pyrolysis was carried out under slow heating rate, viz. 1 K min−1. Adsorption and shape selective properties of the carbon filled mesoporous silica were studied by performing pulse chromatography and breakthrough experiments, and by measuring adsorption isotherms of linear and branched alkanes. Whereas the parent mesoporous silica shows unselective adsorption, their CSM analogues preferentially adsorb linear alkanes. The sorption capacity and selectivity can be adjusted by changing the pore size of the template or by varying the synthesis conditions. A relation between the carbon crystallites size and the shape selective behaviour of the corresponding CSM for instance is demonstrated. Most interestingly, CSM shows separation factors for linear and branched alkanes up to values comparable to those of zeolitic molecular sieves.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Amsterdam	Editor
Language		Wos	000293435400016	Publication Date	2011-04-15
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1387-1811;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.615	Times cited	15	Open Access
Notes				Approved	Most recent IF: 3.615; 2011 IF: 3.285
Call Number	UA @ lucian @ c:irua:92325			Serial	1380
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Author	King, G.; Abakumov, A.M.; Woodward, P.M.; Llobet, A.; Tsirlin, A.A.; Batuk, D.; Antipov, E.V.
Title	The high-temperature polymorphs of K₃AlF₆			Type	A1 Journal article
Year	2011	Publication	Inorganic chemistry	Abbreviated Journal	Inorg Chem
Volume	50	Issue	16	Pages	7792-7801
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	The crystal structures of the three high-temperature polymorphs of K3AlF6 have been solved from neutron powder diffraction, synchrotron X-ray powder diffraction, and electron diffraction data. The β-phase (stable between 132 and 153 °C) and γ-phase (stable between 153 to 306 °C) can be described as unusually complex superstructures of the double-perovskite structure (K2KAlF6) which result from noncooperative tilting of the AlF6 octahedra. The β-phase is tetragonal, space group I4/m, with lattice parameters of a = 13.3862(5) Å and c = 8.5617(3) Å (at 143 °C) and Z = 10. In this phase, one-fifth of the AlF6 octahedra are rotated about the c-axis by 45° while the other four-fifths remain untilted. The large 45° rotations result in edge sharing between these AlF6 octahedra and the neighboring K-centered polyhedra, resulting in pentagonal bipyramidal coordination for four-fifths of the K+ ions that reside on the B-sites of the perovskite structure. The remaining one-fifth of the K+ ions on the B-sites retain octahedral coordination. The γ-phase is orthorhombic, space group Fddd, with lattice parameters of a = 36.1276(4) Å, b = 17.1133(2) Å, and c = 12.0562(1) Å (at 225 °C) and Z = 48. In the γ-phase, one-sixth of the AlF6 octahedra are randomly rotated about one of two directions by 45° while the other five-sixths remain essentially untilted. These rotations result in two-thirds of the K+ ions on the B-site obtaining 7-fold coordination while the other one-third remain in octahedral coordination. The δ-phase adopts the ideal cubic double-perovskite structure, space group Fmm, with a = 8.5943(1) Å at 400 °C. However, pair distribution function analysis shows that locally the δ-phase is quite different from its long-range average crystal structure. The AlF6 octahedra undergo large-amplitude rotations which are accompanied by off-center displacements of the K+ ions that occupy the 12-coordinate A-sites.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Easton, Pa	Editor
Language		Wos	000293493100052	Publication Date	2011-07-11
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0020-1669;1520-510X;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	4.857	Times cited	19	Open Access
Notes				Approved	Most recent IF: 4.857; 2011 IF: 4.601
Call Number	UA @ lucian @ c:irua:91131			Serial	1468
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Author	Neyts, E.C.; Khalilov, U.; Pourtois, G.; van Duin, A.C.T.
Title	Hyperthermal oxygen interacting with silicon surfaces : adsorption, implantation, and damage creation			Type	A1 Journal article
Year	2011	Publication	The journal of physical chemistry: C : nanomaterials and interfaces	Abbreviated Journal	J Phys Chem C
Volume	115	Issue	15	Pages	4818-4823
Keywords	A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Abstract	Using reactive molecular dynamics simulations, we have investigated the effect of single-impact, low-energy (thermal-100 eV) bombardment of a Si(100){2 × 1} surface by atomic and molecular oxygen. Penetration probability distributions, as well as defect formation distributions, are presented as a function of the impact energy for both species. It is found that at low impact energy, defects are created chemically due to the chemisorption process in the top layers of the surface, while at high impact energy, additional defects are created by a knock-on displacement of Si. These results are of particular importance for understanding device performances of silica-based microelectronic and photovoltaic devices.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000288401200060	Publication Date	2011-03-02
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1932-7447;1932-7455;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	4.536	Times cited	28	Open Access
Notes				Approved	Most recent IF: 4.536; 2011 IF: 4.805
Call Number	UA @ lucian @ c:irua:89858			Serial	1543
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Author	Orlinskii, S.B.; Bogomolov, R.S.; Kiyamova, A.M.; Yavkin, B.V.; Mamin, G.M.; Turner, S.; Van Tendeloo, G.; Shiryaev, A.A.; Vlasov, I.I.; Shenderova, O.
Title	Identification of substitutional nitrogen and surface paramagnetic centers in nanodiamond of dynamic synthesis by electron paramagnetic resonance			Type	A1 Journal article
Year	2011	Publication	Nanoscience and nanotechnology letters	Abbreviated Journal	Nanosci Nanotech Let
Volume	3	Issue	1	Pages	63-67
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT)
Abstract	Production of nanodiamond particles containing substitutional nitrogen is important for a wide variety of advanced applications. In the current work nanodiamond particles synthesized from a mixture of graphite and hexogen were analyzed to determine the presence of substitutional nitrogen using pulsed electron paramagnetic resonance (EPR) spectroscopy. Nitrogen paramagnetic centers in the amount of 1.2 ppm have been identified. The spin relaxation characteristics for both nitrogen and surface defects are also reported. A new approach for efficient depletion of the strong non-nitrogen EPR signal in nanodiamond material by immersing nanodiamond particles into ice matrix is suggested. This approach allows an essential decrease of the spin relaxation time of the dominant non-nitrogen defects, while preserving the substitutional nitrogen spin relaxation time.
Address
Corporate Author				Thesis
Publisher		Place of Publication		Editor
Language		Wos	000293211200012	Publication Date	2011-09-19
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	1941-4900;1941-4919;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	1.889	Times cited	14	Open Access
Notes				Approved	Most recent IF: 1.889; 2011 IF: 0.528
Call Number	UA @ lucian @ c:irua:91943			Serial	1548
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Author	Vernimmen, J.; Guidotti, M.; Silvestre-Albero, J.; Jardim, E.O.; Mertens, M.; Lebedev, O.I.; Van Tendeloo, G.; Psaro, R.; Rodríguez-Reinoso, F.; Meynen, V.; Cool, P.
Title	Immersion calorimetry as a tool to evaluate the catalytic performance of titanosilicate materials in the epoxidation of cyclohexene			Type	A1 Journal article
Year	2011	Publication	Langmuir: the ACS journal of surfaces and colloids	Abbreviated Journal	Langmuir
Volume	27	Issue	7	Pages	3618-3625
Keywords	A1 Journal article; Electron microscopy for materials research (EMAT); Laboratory of adsorption and catalysis (LADCA)
Abstract	Different types of titanosilicates are synthesized, structurally characterized, and subsequently catalytically tested in the liquid-phase epoxidation of cyclohexene. The performance of three types of combined zeolitic/mesoporous materials is compared with that of widely studied Ti-grafted-MCM-41 molecular sieve and the TS-1 microporous titanosilicate. The catalytic test results are correlated with the structural characteristics of the different catalysts. Moreover, for the first time, immersion calorimetry with the same substrate molecule as in the catalytic test reaction is applied as an extra means to interpret the catalytic results. A good correlation between catalytic performance and immersion calorimetry results is found. This work points out that the combination of catalytic testing and immersion calorimetry can lead to important insights into the influence of the materials structural characteristics on catalysis. Moreover, the potential of using immersion calorimetry as a screening tool for catalysts in epoxidation reactions is shown.
Address
Corporate Author				Thesis
Publisher		Place of Publication	Washington, D.C.	Editor
Language		Wos	000288970900054	Publication Date	2011-02-23
Series Editor		Series Title		Abbreviated Series Title
Series Volume		Series Issue		Edition
ISSN	0743-7463;1520-5827;	ISBN		Additional Links	UA library record; WoS full record; WoS citing articles
Impact Factor	3.833	Times cited	19	Open Access
Notes				Approved	Most recent IF: 3.833; 2011 IF: 4.186
Call Number	UA @ lucian @ c:irua:88366			Serial	1557
Permanent link to this record