通过关键词查论文: Line Profile Analysis

文章题目页数

作者: Iuliana C. Dragomir, András Borbély, Tamás Ungár
摘要: Anisotropic strain broadening of diffraction peaks can be parameterised by dislocation contrast factors. A comprehensive software has been developed and made available through the internet to determine the individual and averaged contrast factors which are also compiled for cubic and hexagonal crystals. Using the theoretical and the measured values of contrast factor the microstructure of the specimen can be characterised in terms of active slip systems, Burgers vector populations, dislocation densities and crystallite size- and size distribution.
95
作者: I. Lucks, P. Lamparter, Eric J. Mittemeijer
451
作者: W.I.F. David, Matteo Leoni, Paolo Scardi
摘要: The implementation of a physically-sound size broadening model for peak profiles in the Rietveld method is presented. TOPAS macros are provided and the results compared with analogous modelling performed according to advanced analysis methods such as the Whole Powder Pattern Modelling.
187
作者: Paolo Scardi, Matteo Leoni, Mirco D'Incau
摘要: The recent evolution of powder diffraction line profile analysis toward full pattern methods is discussed. Specific reference is made to the Whole Powder Pattern Modelling (WPPM), as applied to metals and ceramics subjected to strong plastic deformation. Examples concerning three different materials science studies are shown to illustrate features and potentialities of the WPPM approach.
27
作者: Arnold C. Vermeulen, Rob Delhez
摘要: All methods of analyzing the broadening of XRD line profiles have to take into account two basic effects: broadening by the instrument - including the X-ray spectrum - and the characteristics of broadening by size effects and by lattice defects - including their interaction. These effects are handled in practice by a wide range of auxiliary assumptions. In this paper these assumptions and their quality with respect to "appropriateness of purpose" are listed and compared. By systematic ranking of these assumptions in accordance with their quality, a 2-dimensional map can be constructed that visualizes the differences in the quality of the assumptions. This 2-dimensional map brings a new viewpoint to the various methods for line profile analysis, because it enables a qualitative comparison of the assumptions of existing methods and new developments.
127
作者: Paolo Scardi, Yu Hui Dong, Matteo Leoni
132
作者: B.A. Marinković, Z. Žakula, S. Đurić, N. Nikolić, O. Milošević, Momcilo M. Ristić
1068
作者: Z. Somogyvári, E. Sváb, Gy. Mészáros, Kiril Krezhov, P. Konstantinov, Tamás Ungár, Jenő Gubicza
771
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