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“Terahertz absorption window in bilayer graphene”. Dong HM, Qin H, Zhang J, Peeters FM, Xu W Ieee, New York, N.Y., page 247 (2009).
Abstract: We present a detailed theoretical study of terahertz (THz) optical absorption in bilayer graphene. Considering an air/graphene/dielectric-wafer system, we find that there is an absorption window in the range 3 similar to 30 THz. Such an absorption window is induced by different transition energies required for inter- and intra-band optical absorption in the presence of the Pauli blockade effect. As a result, the position and width of this THz absorption window depend sensitively on temperature and carrier density of the system. These results are pertinent to the applications of recently developed graphene systems as novel optoelectronic devices such as THz photo-detectors.
Keywords: H1 Book chapter; Condensed Matter Theory (CMT)
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“Enamels in stained-glass windows : preparation, chemical composition, microstructure and causes of deterioration”. Caen J, Schalm O, van der Snickt G, van der Linden V, Frederickx P, Schryvers D, Janssens K, Cornelis E, van Dyck D, Schreiner M, , 121 (2005)
Keywords: P3 Proceeding; Art; Electron microscopy for materials research (EMAT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Vision lab
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Adams F, Gijbels R, Van Grieken R, Dachang Z (1993) Inorganic mass spectrometry. Fudan University Press, Shanghai, 391 p
Keywords: MA3 Book as author; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Inorganic mass spectrometry”. Adams F, Gijbels R, van Grieken R, Kim Y-sang Freedom Academy Press, Seoul (1999).
Keywords: ME3 Book as editor; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Investigation of the elementary mechanisms controlling dislocation/twin boundary interactions in fcc metals and alloys : from conventional to advanced TEM characterization”. Idrissi H, Schryvers D Formatex Research Center, S.l., page 1213 (2012).
Keywords: H2 Book chapter; Electron microscopy for materials research (EMAT)
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“Identification des substances inorganiques et organiques en surface des solides par la microsonde laser”. van Vaeck L, Gijbels R Eyrolles, Paris, page 27 (1992).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“High resolution electron microscopy for materials”. van Landuyt J Eurem 92, Granada, page 23 (1992).
Keywords: H3 Book chapter; Electron microscopy for materials research (EMAT)
Times cited: 7
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“In situ HREM study of electron irradiation effects in AgCl microcrystals”. Goessens C, Schryvers D, de Keyzer R, van Landuyt J Eurem 92, Granada, page 646 (1992).
Keywords: H3 Book chapter; Electron microscopy for materials research (EMAT)
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“Structural instabilities associated with phase transitions: an electron microscopy study”. Van Tendeloo G, Schryvers D, Tanner LE, , 107 (1992)
Keywords: P3 Proceeding; Electron microscopy for materials research (EMAT)
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“Chemical surface characterization of complex AgX microcrystals by imaging TOF-SIMS and dual beam depth profiling”. Verlinden G, Gijbels R, Geuens I, de Keyzer R, , 213 (2000)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Colloquium Spectroscopicum Internationale 34: a collection of papers presented at the Colloquium Spectroscopicum Internationale, Antwerp, Belgium, 4-9 September 2005”. Janssens K, Bogaerts A, van Grieken R Elsevier, Amsterdam (2006).
Keywords: ME3 Book as editor; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Colloquium Spectroscopicum Internationale 34 (CSI 34), Antwerp, Belgium, 4-9 September 2005”. Bogaerts A, Janssens K, van Grieken R Elsevier, Amsterdam (2006).
Keywords: ME3 Book as editor; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“High-resolution electron microscopy for semiconducting materials science”. van Landuyt J, Vanhellemont J Elsevier, Amsterdam, page 1109 (1994).
Keywords: H3 Book chapter; Electron microscopy for materials research (EMAT)
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“On the phase-like nature of the 7m structure in ni-al”. Schryvers D, Tanner LE, , 849 (1994)
Keywords: P1 Proceeding; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
Times cited: 1
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“Preconcentration of precious metals by tellurium sulphide fire-assay followed by instrumental neutron activation analysis”. Shazali I, Van 't dack L, Gijbels R, , 29 (1988)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Recent results on characterization of detonation nanodiamonds”. Vlasov II, Turner S, Van Tendeloo G, Shiryaev AA Elsevier, Amsterdam, page 291 (2012).
Keywords: H3 Book chapter; Electron microscopy for materials research (EMAT)
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“Study of oxynitrides with dual beam TOF-SIMS”. de Witte H, Conard T, Vandervorst W, Gijbels R, , 611 (2000)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“TOF-SIMS analysis of carbocyanine dyes adsorbed on silver substrates”. Lenaerts J, Verlinden G, van Vaeck L, Gijbels R, Geuens I, , 115 (2000)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“XPS study of ion induced oxidation of silicon with and without oxygen flooding”. de Witte H, Conard T, Sporken R, Gouttebaron R, Magnee R, Vandervorst W, Caudano R, Gijbels R, , 73 (2000)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Electron microscopy of fullerenes and fullerene related structures”. Van Tendeloo G, van Landuyt J, Amelinckx S, , 498 (1994)
Keywords: P3 Proceeding; Electron microscopy for materials research (EMAT)
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“3D FIB/SEM study of Ni4Ti3 precipitates in Ni-Ti alloys with different thermal-mechanical histories”. Cao S, Nishida M, Somsen C, Eggeler G, Schryvers D, , 02004 (2009). http://doi.org/10.1051/esomat/200902004
Abstract: The three-dimensional size, morphology and distribution of Ni4Ti3 precipitates growing in binary Ni-rich Ni-Ti alloys have been investigated via a slice view procedure in a Dual-Beam FIB/SEM system, in order to better stress-free Ni50.8Ti49.2 alloy with all four variants of precipitates and a compressed Ni51Ti49 alloy with aligned precipitates in one family were studied. The Ni4Ti3 precipitates reach a volume fraction of 9.6% in the reconstructed region of the stress-free alloy and 4.3% in the compressed one. In both cases, the mean volume, specific surface area, sphericity and aspect ratio of the precipitates are calculated and the Pair Distribution Functions of the precipitates are obtained. It is shown that most precipitates in the stress-free sample grow larger and have a more lenticular shape, while those in the compressed sample are more cylindrical. Deviations from these ideal shapes reveal internal steps in the stress-free sample and lamellae formation in the compressed one.
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
Times cited: 1
DOI: 10.1051/esomat/200902004
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“3D strain fields surrounding Ni4Ti3: direct measurement and correlation with the R-phase”. Tirry W, Schryvers D, , 02032 (2009). http://doi.org/10.1051/esomat/200902032
Abstract: Strain fields introduced by coherent Ni4Ti3 precipitates in austenitic Ni-Ti are believed to be a possible origin of why the R-phase transformation is introduced as an extra step before transforming to the B19'. The presence of this strain field was already confirmed in the past by conventional transmission electron microscopy (TEM) techniques and measured quantitatively by high resolution TEM (HRTEM). This time the geometrical phase method is applied on HRTEM micrographs to measure the full 3D strain tensor of the strain fields. Since each atomic resolution micrograph only results in a 2D measurement of the strain, observations in two different zone orientations are combined to retrieve the 3 x 3 strain tensor. In this work observations in a [1-1 1](B2) and [1 0-1](B2) zone orientation are used and this in case of precipitates with a diameter of around 50nm. In a next step the measured strain tensor is compared to the calculated eigenstrain of the R-phase in reference to the B2 matrix. This comparison shows that the introduced strain is very similar to the eigenstrain of one R-phase variant. Since for both structures, Ni4Ti3 and R-phase, four orientation variants are possible, each variant of the R-phase is thus able to accommodate the strain field of one of the Ni4Ti3 variants.
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
DOI: 10.1051/esomat/200902032
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“Pinning of the martensitic microstructures by dislocations in Cu74.08Al23.13Be2.79”. Idrissi H, Schryvers D, Salje EKH, Zhang H, Carpenter MA, Moya X, , 02029 (2009). http://doi.org/10.1051/esomat/200902029
Abstract: A single crystal of Cu74.08Al23.13Be2.79 undergoes a martensitic phase transition at 246K and 232K under heating and cooling, respectively. Surprisingly, the martensite phase is elastically much harder than the austenite phase showing that interfaces between various crystallographic variants are strongly pinned and can not be moved by external stress while the phase boundary between the austenite and martensite regions in the sample remains mobile. This unusual behavior was revealed by Dynamical Mechanical Analysis and Resonant Ultrasound Spectroscopy. Transmission Electron Microscopy shows that the pinning is generated by dislocations, which are inherited from the austenite phase. Such dislocations can hinder the movement of stacking faults in the 18R martensite structure or twin boundaries between martensite variants.
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
Times cited: 2
DOI: 10.1051/esomat/200902029
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“TEM study of the mechanism of Ni ion release from Nitinol wires with original oxides”. Tian H, Schryvers D, Shabalovskaya S, van Humbeeck J, , 05027 (2009). http://doi.org/10.1051/esomat/200905027
Abstract: The surface of commercial Nitinol wires with original oxides and a thickness in the 30-190 nm range was investigated by different state of art TEM techniques. The oxide surface layer was identified as a combination of TiO and TiO2 depending on the processing of the wire. Between the core of the wires and the oxidized surface, an interfacial Ni3Ti nanolayer was observed while Ni nanoparticles are found inside the original oxide. The particle sizes, their distribution in the surface and the Ti-O stoichiometry were deduced from the analysis of the obtained data. Molecular dynamics calculations performed for evaluation of the stability of Ni particles relative to the atomic state revealed that a pure Ni particle has a lower energy than free Ni atoms inside the TiO2 lattice. The obtained results are discussed with respect to surface stability and Ni release in the human body.
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
Times cited: 1
DOI: 10.1051/esomat/200905027
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“Transmission electron microscopy study of low-hysteresis shape memory alloys”. Delville R, James RD, Salman U, Finel A, Schryvers D, , 02005 (2009). http://doi.org/10.1051/esomat/200902005
Abstract: Recent findings have linked low hysteresis in shape memory alloys with phase compatibility between austenite and martensite. In order to investigate the evolution of microstructure as the phase compatibility increases and the hysteresis is reduced, transmission electron microscopy was used to study the alloy system Ti50Ni50-xPdx where the composition is systemically tuned to approach perfect compatibility. Changes in morphology, twinning density and twinning modes are reported along with special microstructures occurring when the compatibility is achieved. In addition, the interface between austenite and a single variant of martensite was studied by high-resolution and conventional electron microscopy. The atomically sharp, defect free, low energy configuration of the interface suggests that it plays an important role in the lowering of hysteresis. Finally, dynamical modeling of the martensitic transformation using the phase-field micro-elasticity model within the geometrically linear theory succeeded in reproducing the change in microstructure as the compatibility condition is satisfied. Latest results on the extension of these findings in other Ni-Ti based ternary/quaternary systems are also reported.
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
Times cited: 3
DOI: 10.1051/esomat/200902005
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“HREM imaging analysis in the study of pretransition and nucleation phenomena in alloys (Invited)”. Schryvers D, Van Tendeloo G, van Landuyt J, Le Tanner, , 659 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
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“Complex structural and analytical characterization of silver halide photographic systems by means of analytical electron microscopy”. Oleshko V, Gijbels R, Jacob W, Alfimov M Editions de physique, Les Ulis, page 701 (1994).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Modelling of formation and transport of nanoparticles in silane discharges”. de Bleecker K, Bogaerts A, Goedheer WJ, Gijbels R, , 0 (2004)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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“Application of trace element analysis to geothermal waters”. Gijbels R, van Grieken R, Blommaert W, Vandelannoote R, Van 't dack L, , 429 (1977)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
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“Modeling aspects of plasma-enhanced chemical vapor deposition of carbon-based materials”. Neyts E, Mao M, Eckert M, Bogaerts A CRC Press, Boca Raton, Fla, page 245 (2012).
Keywords: H1 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
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