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| Author | Gul, A.; Bacaksiz, C.; Unsal, E.; Akbali, B.; Tomak, A.; Zareie, H.M.; Sahin, H. | ||||
| Title | Theoretical and experimental investigation of conjugation of 1,6-hexanedithiol on MoS2 | Type | A1 Journal article | ||
| Year | 2018 | Publication  |
Materials Research Express | Abbreviated Journal | Mater Res Express |
| Volume | 5 | Issue | 3 | Pages | 036415 |
| Keywords | A1 Journal article; Condensed Matter Theory (CMT) | ||||
| Abstract | We report an experimental and theoretical investigation of conjugation of 1,6-Hexaneditihiol (HDT) on MoS2 which is prepared by mixing MoS2 structure and HDT molecules in proper solvent. Raman spectra and the calculated phonon bands reveal that the HDT molecules bind covalently to MoS2. Surface morphology of MoS2/HDTstructure is changed upon conjugation ofHDTon MoS2 and characterized by using Scanning Electron Microscope (SEM). Density Functional Theory (DFT) based calculations show that HOMO-LUMO band gap of HDT is altered after the conjugation and two-S binding (handle-like) configuration is energetically most favorable among three different structures. This study displays that the facile thiol functionalization process of MoS2 is promising strategy for obtaining solution processable MoS2. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | IOP Publishing | Place of Publication | Bristol | Editor | |
| Language | Wos | 000428781400003 | Publication Date | 2018-03-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2053-1591 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 1.068 | Times cited | 2 | Open Access | |
| Notes | ; Computational resources were provided by TUBITAK ULAKBIM, High Performance and Grid Computing Center (TR-Grid e-Infrastructure). HS acknowledges financial support from the TUBITAK under the project number 116C073. HS acknowledges support from Bilim Akademisi-The Science Academy, Turkey under the BAGEP program. ; | Approved | Most recent IF: 1.068 | ||
| Call Number | UA @ lucian @ c:irua:154607UA @ admin @ c:irua:154607 | Serial | 5133 | ||
| Permanent link to this record | |||||
| Author | Vishwakarma, M.; Varandani, D.; Hendrickx, M.; Hadermann, J.; Mehta, B.R. | ||||
| Title | Nanoscale photovoltage mapping in CZTSe/CuxSe heterostructure by using kelvin probe force microscopy | Type | A1 Journal article | ||
| Year | 2020 | Publication |
Materials Research Express | Abbreviated Journal | |
| Volume | 7 | Issue | 1 | Pages | 016418 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | In the present work, kelvin probe force microscopy (KPFM) technique has been used to study the CZTSe/CuxSe bilayer interface prepared by multi-step deposition and selenization process of metal precursors. Transmission electron microscopy (TEM) confirmed the bilayer configuration of the CZTSe/CuxSe sample. Two configuration modes (surface mode and junction mode) in KPFM have been employed in order to measure the junction voltage under illumination conditions. The results show that CZTSe/CuxSe has small junction voltage of similar to 21 mV and the presence of CuxSe secondary phase in the CZTSe grain boundaries changes the workfunction of the local grain boundaries region. The negligible photovoltage difference between grain and grain boundaries in photovoltage image indicates that CuxSe phase deteriorates the higher photovoltage at grain boundaries normally observed in CZTSe based device. These results can be important for understanding the role of secondary phases in CZTSe based junction devices. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000520120900001 | Publication Date | 2019-12-27 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | ||
| Impact Factor | Times cited | Open Access | OpenAccess | ||
| Notes | ; Authors acknowledges support provided DST in the forms of InSOL and Indo-Swiss projects. We also acknowledge Joke Hadermann EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Belgium for helping in TEM measurements. M V Manoj Vishwakarma acknowledges IIT Delhi for MHRD fellowship. Prof B R Mehta acknowledges the support of the Schlumberger chair professorship. M V also acknowledges the support of DST-FIST Raman facility. ; | Approved | Most recent IF: NA | ||
| Call Number | UA @ admin @ c:irua:167843 | Serial | 6567 | ||
| Permanent link to this record | |||||
| Author | Mahr, C.; Müller-Caspary, K.; Graf, M.; Lackmann, A.; Grieb, T.; Schowalter, M.; Krause, F.F.; Mehrtens, T.; Wittstock, A.; Weissmueller, J.; Rosenauer, A. | ||||
| Title | Measurement of local crystal lattice strain variations in dealloyed nanoporous gold | Type | A1 Journal article | ||
| Year | 2018 | Publication |
Materials research letters | Abbreviated Journal | Mater Res Lett |
| Volume | 6 | Issue | 1 | Pages | 84-92 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Reversible macroscopic length changes in nanoporous structures can be achieved by applying electric potentials or by exposing them to different gases or liquids. Thus, these materials are interesting candidates for applications as sensors or actuators. Macroscopic length changes originate from microscopic changes of crystal lattice parameters. In this report, we show spatially resolved measurements of crystal lattice strain in dealloyed nanoporous gold. The results confirm theory by indicating a compression of the lattice along the axis of cylindrically shaped ligaments and an expansion in radial direction. Furthermore, we show that curved npAu surfaces show inward relaxation of the surface layer. [GRAPHICS] . | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Taylor & Francis | Place of Publication | Abingdon | Editor | |
| Language | Wos | 000428141500013 | Publication Date | 2017-11-03 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2166-3831 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.773 | Times cited | 4 | Open Access | Not_Open_Access |
| Notes | ; This work has been supported by the Deutsche Forschungsgemeinschaft (DFG) under contracts no. RO2057/12-1 (SP 6), WI4497/1-1 (SP 2) and WE1424/17-1 (SP 3) within the research unit FOR2213 (www.nagocat.de). K.M.-C acknowledges support by the DFG under contract no. MU3660/1-1 and T.G. under contract no. RO2057/ 11-1. ; | Approved | Most recent IF: 4.773 | ||
| Call Number | UA @ lucian @ c:irua:150921 | Serial | 4973 | ||
| Permanent link to this record | |||||
| Author | Lebedev, O.I.; Van Tendeloo, G.; Amelinckx, S.; Leibold, B.; Habermeier, H.U.; Phillipp, F. | ||||
| Title | Structure and magnetotransport properties of La2/3Ca1/3MnO3 thin films prepared by pulsed laser deposition | Type | P1 Proceeding | ||
| Year | 1998 | Publication |
Materials Research Society symposium proceedings T2 – Symposium on Advances in Laser Ablation of Materials at the 1998 MRS, Spring Meeting, April 13-16, 1998, San Francisco, Calif. | Abbreviated Journal | |
| Volume | Issue | Pages | 219-224 | ||
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | La1-xCaxMnO3-delta (LCMO) thin films are grown by pulsed laser deposition on a (100) SrTiO3 substrate at temperatures between 530 degrees C and 890 degrees C. The magnetotransport properties show a high negative magnetoresistance and a shift of the maximum of the R(T) curve as function of temperature. The Curie temperature changes with deposition temperature and film quality in the range of 100-220K. The film quality is characterised by X-ray diffraction and transmission electron microscopy (TEM); film and target compositions were verified by atomic emission spectroscopy. The local structure of the film depends on the growth conditions and substrate temperature. TEM reveals a slight distortion of the film leading to a breakdown of the symmetry from orthorhombic to monoclinic. At the highest growth temperatures, a well defined interface is observed within the LCMO film, parallel to the substrate surface; this interface divides the film into two lamellae with a different microstructure. The lamella close to the substrate is perfectly coherent with the substrate, suggesting that it is strained as a result of the lattice parameter mismatch; the upper lamella shows a typical domain structure with unusual translation interfaces characterised by a displacement vector of the type 1/2[010](m) and 1/2[001](m) when referred ten the monoclinic lattice. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Materials research society | Place of Publication | Warrendale | Editor | |
| Language | Wos | 000077696000032 | Publication Date | 2011-04-05 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | 526 | Series Issue | Edition | ||
| ISSN | 1946-4274; | 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:95838 | Serial | 3283 | ||
| Permanent link to this record | |||||
| Author | Mortet, V.; Zhang, L.; Echert, M.; Soltani, A.; d' Haen, J.; Douheret, O.; Moreau, M.; Osswald, S.; Neyts, E.; Troadec, D.; Wagner, P.; Bogaerts, A.; Van Tendeloo, G.; Haenen, K. | ||||
| Title | Characterization of nano-crystalline diamond films grown under continuous DC bias during plasma enhanced chemical vapor deposition | Type | A3 Journal article | ||
| Year | 2009 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | Issue | 1203 | Pages | ||
| Keywords | A3 Journal article; Electron microscopy for materials research (EMAT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | Nanocrystalline diamond films have generated much interested due to their diamond-like properties and low surface roughness. Several techniques have been used to obtain a high re-nucleation rate, such as hydrogen poor or high methane concentration plasmas. In this work, the properties of nano-diamond films grown on silicon substrates using a continuous DC bias voltage during the complete duration of growth are studied. Subsequently, the layers were characterised by several morphological, structural and optical techniques. Besides a thorough investigation of the surface structure, using SEM and AFM, special attention was paid to the bulk structure of the films. The application of FTIR, XRD, multi wavelength Raman spectroscopy, TEM and EELS yielded a detailed insight in important properties such as the amount of crystallinity, the hydrogen content and grain size. Although these films are smooth, they are under a considerable compressive stress. FTIR spectroscopy points to a high hydrogen content in the films, while Raman and EELS indicate a high concentration of sp2 carbon. TEM and EELS show that these films consist of diamond nano-grains mixed with an amorphous sp2 bonded carbon, these results are consistent with the XRD and UV Raman spectroscopy data. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | Publication Date | 2010-03-27 | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 1946-4274; | ISBN | Additional Links | UA library record | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:81646 | Serial | 327 | ||
| Permanent link to this record | |||||
| Author | Joutsensaari, J.; Kauppinen, E.I.; Bernaerts, D.; Van Tendeloo, G. | ||||
| Title | Crystal growth studies during aerosol synthesis of nanostructured fullerene particles | Type | P1 Proceeding | ||
| Year | 1998 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 520 | Issue | Pages | 63-68 | |
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | 000075966500008 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 1 | Open Access | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:25680 | Serial | 557 | ||
| Permanent link to this record | |||||
| Author | Germain, M.; Leys, M.; Boeykens, S.; Degroote, S.; Wang, W.; Schreurs, D.; Ruythooren, W.; Choi, K.-H.; van Daele, B.; Van Tendeloo, G.; Borghs, G. | ||||
| Title | High electron mobility in AlGaN/GaN HEMT grown on sapphire: strain modification by means of AIN interlayers | Type | P1 Proceeding | ||
| Year | 2004 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 798 | Issue | Pages | Y10.22,1-6 | |
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | Publication Date | 0000-00-00 | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:54861 | Serial | 1424 | ||
| Permanent link to this record | |||||
| Author | Fedina, L.; van Landuyt, J.; Vanhellemont, J.; Aseev, A. | ||||
| Title | Observation of vacancy clustering in Si crystals during in situ electron irradiation in a high voltage electron microscope | Type | P1 Proceeding | ||
| Year | 1996 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 404 | Issue | Pages | 189-194 | |
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | A1996BG19E00025 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 1 | Open Access | ||
| Notes | Approved | no | |||
| Call Number | UA @ lucian @ c:irua:15457 | Serial | 2424 | ||
| Permanent link to this record | |||||
| Author | Ahonen, P.P.; Kauppinen, E.I.; Deschanvres, J.L.; Joubert, J.C.; Van Tendeloo, G. | ||||
| Title | Preparation of nanocrystalline titania powder by aerosol pyrolysis of titanium alkoxide | Type | P1 Proceeding | ||
| Year | 1998 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 520 | Issue | Pages | 109-114 | |
| Keywords | P1 Proceeding; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | 000075966500015 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 2 | Open Access | ||
| Notes | Approved | Most recent IF: NA | |||
| Call Number | UA @ lucian @ c:irua:25681 | Serial | 2704 | ||
| Permanent link to this record | |||||
| Author | Hellmuth, K.H.; Siitari-Kaupi, M.; Rauhala, E.; Johansson, B.; Zilliacus, R.; Gijbels, R.; Adriaens, A. | ||||
| Title | Reactions of high FeO-olivine rock with groundwater and redox-sensitive elements studied by surface-analytical methods and autoradiography | Type | P1 Proceeding | ||
| Year | 1994 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 333 | Issue | Pages | 947-953 | |
| Keywords | P1 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | A1994BA13E00112 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | Times cited | 6 | Open Access | ||
| Notes | Approved | ||||
| Call Number | UA @ lucian @ c:irua:8939 | Serial | 2821 | ||
| Permanent link to this record | |||||
| Author | Peeters, F.M. | ||||
| Title | Tuning of energy levels in a superlattice | Type | P1 Proceeding | ||
| Year | 1994 | Publication |
Materials Research Society symposium proceedings | Abbreviated Journal | |
| Volume | 325 | Issue | Pages | 471-480 | |
| Keywords | P1 Proceeding; Condensed Matter Theory (CMT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Wuhan | Editor | ||
| Language | Wos | A1994BA45Z00064 | Publication Date | 0000-00-00 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0272-9172 | ISBN | Additional Links | UA library record; WoS full record; | |
| Impact Factor | Times cited | Open Access | |||
| Notes | Approved | COMPUTER SCIENCE, INTERDISCIPLINARY 11/104 Q1 # PHYSICS, MATHEMATICAL 1/53 Q1 # | |||
| Call Number | UA @ lucian @ c:irua:9381 | Serial | 3751 | ||
| Permanent link to this record | |||||
| Author | Samaee, V.; Sandfeld, S.; Idrissi, H.; Groten, J.; Pardoen, T.; Schwaiger, R.; Schryvers, D. | ||||
| Title | Dislocation structures and the role of grain boundaries in cyclically deformed Ni micropillars | Type | A1 Journal article | ||
| Year | 2020 | Publication |
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 769 | Issue | Pages | 138295 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Transmission electron microscopy and finite element-based dislocation simulations were combined to study the development of dislocation microstructures after cyclic deformation of single crystal and bicrystal Ni micropillars oriented for multi-slip. A direct correlation between large accumulation of plastic strain and the presence of dislocation cell walls in the single crystal micropillars was observed, while the presence of the grain boundary hampered the formation of wall-like structures in agreement with a smaller accumulated plastic strain. Automated crystallographic orientation and nanostrain mapping using transmission electron microscopy revealed the presence of lattice heterogeneities associated to the cell walls including long range elastic strain fields. By combining the nanostrain mapping with an inverse modelling approach, information about dislocation density, line orientation and Burgers vector direction was derived, which is not accessible otherwise in such dense dislocation structures. Simulations showed that the image forces associated with the grain boundary in this specific bicrystal configuration have only a minor influence on dislocation behavior. Thus, the reduced occurrence of “mature” cell walls in the bicrystal can be attributed to the available volume, which is too small to accommodate cell structures. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000500373800018 | Publication Date | 2019-08-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.4 | Times cited | 1 | Open Access | OpenAccess |
| Notes | Financial support from the Flemish (FWO) and German Research Foundation (DFG) through the European M-ERA.NET project “FaSS” (Fatigue Simulation near Surfaces) under the grant numbers GA.014.13 N,SCHW855/5-1, and SA2292/2-1 is gratefully acknowledged. V.S. acknowledges the FWO research project G012012 N “Understanding nanocrystalline mechanical behaviour from structural investigations”. H.I. is mandated by the Belgian National Fund for Scientific Research (FSR-FNRS). S.S. acknowledges financial support from the European Research Council through the ERC Grant Agreement No. 759419 (MuDiLingo – A Multiscale Dislocation Language for Data- Driven Materials Science). | Approved | Most recent IF: 6.4; 2020 IF: 3.094 | ||
| Call Number | EMAT @ emat @c:irua:163475 | Serial | 5371 | ||
| Permanent link to this record | |||||
| Author | Yang, M.; Chen, H.; Orekhov, A.; Lu, Q.; Lan, X.; Li, K.; Zhang, S.; Song, M.; Kong, Y.; Schryvers, D.; Du, Y. | ||||
| Title | Quantified contribution of β″ and β′ precipitates to the strengthening of an aged Al–Mg–Si alloy | Type | A1 Journal article | ||
| Year | 2020 | Publication |
Materials Science And Engineering A-Structural Materials Properties Microstructure And Processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 774 | Issue | Pages | 138776 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | It is generally believed that β00 precipitates, rather than β0 precipitates, are the major strengthening precipitates in aged Al–Mg–Si alloys. The reason for this difference is not well understood. To clarify this, two samples of the same Al–Mg–Si alloy but with different aging states were prepared. The under-aged sample only contains nanoprecipitates of the β00 type, while the peak-aged one contains nearly equal volumes of β00 and β0 precipitates. We have, for the first time, separated the strengthening effect of the contribution from βʺ and βʹ precipitates, respectively, by an indirect approach based on high-precision measurements of volume fractions, number densities, sizes, proportions of the precipitates, their lattice strains, the composition and grain size of the matrix. The β0 precipitates, which take 45.6% of the total precipitate volume in the peak-aged sample, contribute to the entire precipitation strengthening by only 31.6%. The main reason why they are less useful compared to β00 precipitates has been found to be associated with their smaller lattice strains relative to the matrix, which is 0.99% versus 2.10% (for β00 ). |
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000514747200001 | Publication Date | 2019-12-04 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.4 | Times cited | Open Access | OpenAccess | |
| Notes | National Natural Science Foundation of China, 51531009 51711530713 51501230 ; Central South University, 2018gczd033 ; Flemish Science Foundation, VS.026.18N ; Program for Guangdong Introducing Innovative and Entrepreneurial Teams, 2016ZT06G025 ; Guangdong Natural Science Foundation, 2017B030306014 ; | Approved | Most recent IF: 6.4; 2020 IF: 3.094 | ||
| Call Number | EMAT @ emat @c:irua:165290 | Serial | 5440 | ||
| Permanent link to this record | |||||
| Author | Schryvers, D.; Tirry, W.; Yang, Z.Q.; | ||||
| Title | Measuring strain fields and concentration gradients around Ni4Ti3 precipitates | Type | A1 Journal article | ||
| Year | 2006 | Publication |
Materials science and engineering A: structural materials properties microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 438 | Issue | Pages | 485-488 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000242900900105 | Publication Date | 2006-07-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 35 | Open Access | |
| Notes | Goa | Approved | Most recent IF: 3.094; 2006 IF: 1.490 | ||
| Call Number | UA @ lucian @ c:irua:62329 | Serial | 1969 | ||
| Permanent link to this record | |||||
| Author | Schryvers, D.; Potapov, P.; Santamarta, R.; Tirry, W. | ||||
| Title | Applications of advanced transmission electron microscopic techniques to Ni-Ti based shape memory materials | Type | A1 Journal article | ||
| Year | 2004 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 378 | Issue | 1/2 | Pages | 11-15 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000223329900003 | Publication Date | 2004-03-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 6 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2004 IF: 1.445 | |||
| Call Number | UA @ lucian @ c:irua:48783 | Serial | 145 | ||
| Permanent link to this record | |||||
| Author | Srivastava, A.K.; Yang, Z.; Schryvers, D.; van Hurnbeeck, J. | ||||
| Title | Effect of annealing on cold-rolled Ni-Ti alloys | Type | A1 Journal article | ||
| Year | 2008 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 481 | Issue | Si | Pages | 594-597 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000255716100123 | Publication Date | 2007-06-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 8 | Open Access | |
| Notes | Fwo; G0465.05 | Approved | Most recent IF: 3.094; 2008 IF: 1.806 | ||
| Call Number | UA @ lucian @ c:irua:69141 | Serial | 797 | ||
| Permanent link to this record | |||||
| Author | Yang, Z.Q.; Schryvers, D. | ||||
| Title | Electron energy-loss spectroscopy study of NiTi shape memory alloys | Type | A1 Journal article | ||
| Year | 2008 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 481 | Issue | Pages | 214-217 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000255716100041 | Publication Date | 2007-06-11 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 7 | Open Access | |
| Notes | Gao | Approved | Most recent IF: 3.094; 2008 IF: 1.806 | ||
| Call Number | UA @ lucian @ c:irua:69156 | Serial | 934 | ||
| Permanent link to this record | |||||
| Author | Bouvier, S.; Benmhenni, N.; Tirry, W.; Gregory, F.; Nixon, M.E.; Cazacu, O.; Rabet, L. | ||||
| Title | Hardening in relation with microstructure evolution of high purity \alpha-titanium deformed under monotonic and cyclic simple shear loadings at room temperature | Type | A1 Journal article | ||
| Year | 2012 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 535 | Issue | Pages | 12-21 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The aim of this paper is to gain understanding of the quasi-static, large strain deformation behavior at room-temperature of high-purity alpha-Ti with an initial split-basal texture. Simple shear tests were conducted along different directions in order to quantify the material's anisotropy and hardening evolution for different strain paths such as monotonic, Bauschinger, and cyclic loadings. The stress-strain curves indicate that the material displays strong anisotropy in the flow behavior. In order to capture the link between microstructure evolution (occurrence of twinning, grain size evolution, etc.) and the macroscopic response, a thoroughly detailed multi-scale characterization using scanning electron microscope (SEM) observations and electron backscattered diffraction (EBSD) analysis was also conducted. Specifically, EBSD analyses indicate that the twin activity and grain fragmentation are responsible for the observed difference between the macroscopic hardening rates corresponding to different directions and loading paths. (C) 2011 Elsevier B.V. All rights reserved. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000301402400003 | Publication Date | 2011-12-17 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 22 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2012 IF: 2.108 | |||
| Call Number | UA @ lucian @ c:irua:97824 | Serial | 1410 | ||
| Permanent link to this record | |||||
| Author | Tirry, W.; Schryvers, D. | ||||
| Title | High resolution TEM study of Ni4Ti3 precipitates in austenitic Ni51Ti49 | Type | A1 Journal article | ||
| Year | 2004 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 378 | Issue | 1/2 | Pages | 157-160 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000223329900028 | Publication Date | 2004-04-10 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 19 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2004 IF: 1.445 | |||
| Call Number | UA @ lucian @ c:irua:48785 | Serial | 1461 | ||
| Permanent link to this record | |||||
| Author | Coghe, F.; Tirry, W.; Rabet, L.; Schryvers, D.; Van Houtte, P. | ||||
| Title | Importance of twinning in static and dynamic compression of a Ti-6Al-4V titanium alloy with an equiaxed microstructure | Type | A1 Journal article | ||
| Year | 2012 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 537 | Issue | Pages | 1-10 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Whereas deformation twinning is known to be an important deformation mechanism for hexagonal materials like magnesium and pure titanium, so far almost no literature exists on the twinning behaviour of the Ti-6Al-4V alloy. In this work it was shown that the activation of twinning as a deformation mechanism could have a pronounced effect on the mechanical behaviour of the Ti-6Al-4V alloy. This effect is even more pronounced under dynamic loading conditions. Transmission electron microscopy showed that only the {1 0 1 2}{1 0 1 1} tensile twin system was activated under certain loading conditions. Light-optical microscopy and electron backscatter diffraction data were afterwards used to experimentally determine the twin fractions. The importance of twinning for the texture evolution was also studied. It was shown that even small twin fractions can lead to distinct texture features, especially due to the discrete reorientation of the c-axes. The experimental results were compared to simulated results that were obtained with a viscoplastic self-consistent crystal plasticity code, after experimental validation that twinning can be reliably modelled as a unidirectional slip system. Although good agreement was obtained for the experimental and simulated stress-strain curves, the simulated results concerning twinning correlated well only on a qualitative basis as the simulated twin fractions were systematically higher than the experimental fractions. This seems to strengthen the hypothesis made by other research groups that complete grains might reorient by twinning. (C) 2011 Elsevier B.V. All rights reserved. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000301473300001 | Publication Date | 2011-12-21 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 35 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2012 IF: 2.108 | |||
| Call Number | UA @ lucian @ c:irua:97818 | Serial | 1565 | ||
| Permanent link to this record | |||||
| Author | Tirry, W.; Schryvers, D. | ||||
| Title | In situ transmission electron microscopy of stress-induced martensite with focus on martensite twinning | Type | A1 Journal article | ||
| Year | 2008 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 481 | Issue | Si | Pages | 420-425 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000255716100087 | Publication Date | 2007-06-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 22 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2008 IF: 1.806 | |||
| Call Number | UA @ lucian @ c:irua:69139 | Serial | 1586 | ||
| Permanent link to this record | |||||
| Author | Schryvers, D.; Holland-Moritz, D. | ||||
| Title | Martensitic transformations and microstructures in splat-cooled Ni-Al | Type | A1 Journal article | ||
| Year | 1999 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 273/275 | Issue | Pages | 697-702 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000084560400122 | Publication Date | 2002-07-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 6 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 1999 IF: 0.943 | |||
| Call Number | UA @ lucian @ c:irua:29380 | Serial | 1949 | ||
| Permanent link to this record | |||||
| Author | Tirry, W.; Coghe, F.; Bouvier, S.; Gasperini, M.; Rabet, L.; Schryvers, D. | ||||
| Title | A multi-scale characterization of deformation twins in Ti6Al4V sheet material deformed by simple shear | Type | A1 Journal article | ||
| Year | 2010 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 527 | Issue | 16/17 | Pages | 4136-4145 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Ti6Al4V sheet material is subjected to simple shear deformation with strain ratio's of 10%, 30% and 50%. Optical microscopy, transmission electron microscopy and electron backscatter diffraction techniques are applied to study the presence and morphology of deformation twins. Only the View the MathML source type of twins seems to be present with a volume fraction below 1%. These View the MathML source twins show a high density of basal stacking faults of the ABABACAC type identified using atomic resolution transmission electron microscopy. A resolved shear stress analysis shows that twins most often occur on those planes with the highest resolved shear stresses, but that the starting texture is not beneficial for the occurrence of twins. It is further suggested that a transitory strain hardening regime observed around 530 MPa might be related with the onset of twinning. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000278766800068 | Publication Date | 2010-03-23 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 20 | Open Access | |
| Notes | Iap | Approved | Most recent IF: 3.094; 2010 IF: 2.101 | ||
| Call Number | UA @ lucian @ c:irua:82291 | Serial | 2212 | ||
| Permanent link to this record | |||||
| Author | Rotaru, G.-M.; Schryvers, D. | ||||
| Title | New (3(3)under-bar) long-period microtwin variant in the martensitic phase of the PtTi alloy | Type | A1 Journal article | ||
| Year | 2008 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 481 | Issue | Si | Pages | 437-441 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000255716100090 | Publication Date | 2007-06-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 3 | Open Access | |
| Notes | Multimat | Approved | Most recent IF: 3.094; 2008 IF: 1.806 | ||
| Call Number | UA @ lucian @ c:irua:69140 | Serial | 2300 | ||
| Permanent link to this record | |||||
| Author | Tirry, W.; Schryvers, D.; Jorissen, K.; Lamoen, D. | ||||
| Title | Quantitative determination of the crystal structure of Ni4Ti3 precipitates | Type | A1 Journal article | ||
| Year | 2006 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 438 | Issue | Pages | 517-520 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000242900900112 | Publication Date | 2006-07-12 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 7 | Open Access | |
| Notes | Mrtn-Ct-2004-505226 | Approved | Most recent IF: 3.094; 2006 IF: 1.490 | ||
| Call Number | UA @ lucian @ c:irua:61577 | Serial | 2752 | ||
| Permanent link to this record | |||||
| Author | Udoh, K.-I.; El- Araby, A.M.; Tanaka, Y.; Hisatsune, K.; Yasuda, K.; Van Tendeloo, G.; van Landuyt, J. | ||||
| Title | Structural aspects of AuCu I or AuCu II and a cuboidal black configuration of f.c.c. disordered phase in AuCu-Pt and AuCu-Ag pseudobinary alloys | Type | A1 Journal article | ||
| Year | 1995 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 203 | Issue | Pages | 154-164 | |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | A1995TM62800016 | Publication Date | 2002-07-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 2.567 | Times cited | 15 | Open Access | |
| Notes | Approved | ||||
| Call Number | UA @ lucian @ c:irua:13298 | Serial | 3205 | ||
| Permanent link to this record | |||||
| Author | Santamarta, R.; Schryvers, D. | ||||
| Title | Structure of multi-grain spherical particles in an amorphous Ti50Ni25Cu25 melt-spun ribbon | Type | A1 Journal article | ||
| Year | 2004 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 378 | Issue | 1/2 | Pages | 143-147 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | |||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000223329900025 | Publication Date | 2004-04-10 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 5 | Open Access | |
| Notes | Approved | Most recent IF: 3.094; 2004 IF: 1.445 | |||
| Call Number | UA @ lucian @ c:irua:48784 | Serial | 3311 | ||
| Permanent link to this record | |||||
| Author | Jimenez-Mena, N.; Jacques, P.J.; Ding, L.; Gauquelin, N.; Schryvers, D.; Idrissi, H.; Delannay, F.; Simar, A. | ||||
| Title | Enhancement of toughness of Al-to-steel Friction Melt Bonded welds via metallic interlayers | Type | A1 Journal article | ||
| Year | 2019 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | Mat Sci Eng A-Struct |
| Volume | 740-741 | Issue | Pages | 274-284 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | The toughness of Al-to-steel welds decreases with increasing thickness of the intermetallic (IM) layer formed at the interface. Co plating has been added as interlayer in Al-to-steel Friction Melt Bonded (FMB) welds to control the nature and thickness of the IM layer. In comparison to a weld without interlayer, Co plating brings about a reduction of the thickness of the IM layer by 70%. The critical energy release rate of the crack propagating in the weld is used as an indicator of toughness. It is evaluated via an adapted crack propagation test using an energy conservation criterion. For a weld without interlayer, critical energy release rate is found to increase when the thickness of the intermetallic layer decreases. When the intermetallic layer is thick, the crack propagates in a brittle manner through the intermetallic whereas, at low layer thickness, the crack deviates and partially propagates through the Al plate, which causes an increase of toughness. The use of a Co interlayer brings about an increase of toughness by causing full deviation of the crack towards the Al plate. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000453494500029 | Publication Date | 2018-10-24 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 3.094 | Times cited | 4 | Open Access | Not_Open_Access: Available from 25.10.2020 |
| Notes | The authors acknowledge the financial support of the Interuniversity Attraction Poles Program from the Belgian State through the Belgian Policy Agency, Belgium, contract IAP7/21 INTEMATE. N. Jimenez-Mena acknowledges the financial support of the (Fonds pour la formation à la recherchedans l'industrie et dans l'agriculture (FRIA), Belgium. A. Simar acknowledges the financial support of the (European Research Council – Starting Grant (ERC-StG), project ALUFIX, grant agreement no 716678. H. Idrissi is mandated by the Belgian National Fund for Scientific Research (FSR-FNRS), Belgium. The authors also acknowledge M. Coulombier for the help provided in the measurement of the friction coefficient, and T. Pardoen and F. Lani for the fruitful discussions. | Approved | Most recent IF: 3.094 | ||
| Call Number | EMAT @ emat @c:irua:154866UA @ admin @ c:irua:154866 | Serial | 5061 | ||
| Permanent link to this record | |||||
| Author | Morsdorf, L.; Kashiwar, A.; Kübel, C.; Tasan, C.C. | ||||
| Title | Carbon segregation and cementite precipitation at grain boundaries in quenched and tempered lath martensite | Type | A1 Journal article | ||
| Year | 2023 | Publication |
Materials science and engineering: part A: structural materials: properties, microstructure and processing | Abbreviated Journal | |
| Volume | 862 | Issue | Pages | 144369-21 | |
| Keywords | A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Tempering is widely applied to make carbon atoms beneficially rearrange in high strength steel microstructures after quenching; though the nano-scale interaction of carbon atoms with crystallographic defects is hard to experimentally observe. To improve, we investigate the redistribution of carbon atoms along martensite grain boundaries in a quenched and tempered low carbon steel. We observe the tempering-induced microstructural evolution by in-situ heating in a transmission electron microscope (TEM) and by compositional analysis through atom probe tomography (APT). Probe volumes for APT originate from a single martensite packet but in different tempering conditions, which is achieved via a sequential lift-out with in-between tempering treatments. The complementary use of TEM and APT provides crystallographic as well as chemical information on carbon segregation and subsequent carbide precipitation at martensite grain boundaries. The results show that the amount of carbon segregation to martensite grain boundaries is influenced by the boundary type, e.g. low-angle lath or high-angle block boundaries. Also, the growth behavior of cementite precipitates from grain boundary nucleation sites into neighboring martensite grains differs at low- and high-angle grain boundaries. This is due to the crystallographic constraints arising from the semi-coherent orientation relationship between cementite and adjacent martensite. We also show that slower quenching stabilizes thin retained austenite films between martensite grains because of enhanced carbon segregation during cooling. Finally, we demonstrate the effect of carbon redistribution along martensite grain boundaries on the mechanical properties. Here, we compare micro-scale Vickers hardness results from boundary-containing probe volumes to nanoindentation results from pure bulk martensite (boundary-free) probe volumes. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Editor | |||
| Language | Wos | 000905165700001 | Publication Date | 2022-12-07 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0921-5093 | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 6.4 | Times cited | Open Access | Not_Open_Access | |
| Notes | Approved | Most recent IF: 6.4; 2023 IF: 3.094 | |||
| Call Number | UA @ admin @ c:irua:192279 | Serial | 7285 | ||
| Permanent link to this record | |||||
| Author | Biró, L.P.; Khanh, N.Q.; Vértesy, Z.; Horváth, Z.E.; Osváth, Z.; Koós, A.; Gyulai, J.; Kocsonya, A.; Kónya, Z.; Zhang, X.B.; Van Tendeloo, G.; Fonseca, A.; Nagy, J.B.; | ||||
| Title | Catalyst traces and other impurities in chemically purified carbon nanotubes grown by CVD | Type | A1 Journal article | ||
| Year | 2002 | Publication |
Materials science and engineering: part C: biomimetic materials T2 – EMRS Spring Meeting, JUN 05-08, 2001, STRASBOURG, FRANCE | Abbreviated Journal | Mat Sci Eng C-Mater |
| Volume | 19 | Issue | 1-2 | Pages | 9-13 |
| Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
| Abstract | Multiwall carbon nanotubes grown by the catalytic decomposition of acetylene over supported Co catalyst were subjected to wet and dry oxidation in order to remove the unwanted products and the catalyst traces. The effects of the purification treatment on the Co content was monitored by physical methods: Rutherford Backscattering Spectrometry (RBS). Particle Induced X-Ray Emission (PIXE) and X-Ray Fluorescence (XRF). The purified products were investigated by microscopic methods: TEM. Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and STM. The KMnO4/H2SO4 aqueous oxidation procedure was found to be effective in reducing the Co content while damaging only moderately the outer wall of the nanotubes. Treatment in HNO3/H2SO4 yields a bucky-paper like product and produces the increase of the Si and S content of the sample. (C) 2002 Elsevier Science B.V. All rights reserved. | ||||
| Address | |||||
| Corporate Author | Thesis | ||||
| Publisher | Place of Publication | Lausanne | Editor | ||
| Language | Wos | 000173080700003 | Publication Date | 2002-07-25 | |
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 0928-4931; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
| Impact Factor | 4.164 | Times cited | 36 | Open Access | |
| Notes | Approved | Most recent IF: 4.164; 2002 IF: 0.734 | |||
| Call Number | UA @ lucian @ c:irua:102835 | Serial | 289 | ||
| Permanent link to this record | |||||