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Master's Dissertation
DOI
https://doi.org/10.11606/D.85.2018.tde-14062018-103718
Document
Author
Full name
André Santos Barros da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2018
Supervisor
Committee
Martinez, Luis Gallego (President)
Brito, Giancarlo Esposito de Souza
Saeki, Margarida Juri
Title in Portuguese
Desenvolvimento de ferramentas computacionais para análise de perfis de difração de raios X
Keywords in Portuguese
microdeformação
Python
Scherrer
Single-Line
tamanhos médios de cristalitos
Warren-Averbach
Williamson-Hall
Abstract in Portuguese
Neste trabalho foi desenvolvido um conjunto de ferramentas computacionais, em linguagem de programação Python, para a análise de perfis de difração de raios X, tanto para o estudo quanto para obtenção dos valores microestruturais como tamanhos médios de cristalitos e microdeformações, através de dos métodos de: Scherrer, Single-Line, Williamson-Hall e Warren-Averbach. Para aplicar os métodos de análise de perfis, foram também implementados métodos de remoção da contribuição instrumental pelo método de Stokes e ajuste de funções, remoção de ruídos pelo método de Savitzky-Golay, correção da radiação de fundo pelo método de ajuste linear, correção do fator de Lorentz-Polarização e correção do dubleto Kalfa2 .
Title in English
Development of computational tools for analysis of X-ray diffraction profiles
Keywords in English
crystal size
Python
Scherrer
Single-Line
stress
Warren-Averbach
Williamson-Hall
Abstract in English
In this work, a set of computational tools was developed, in the Python programming language, for the analysis of X-ray diffraction profiles, both for the study and for obtaining the microstructural values, as well as the mean values of crystallites and microdeformations, using Scherrer, Single-Line, Williamson-Hall and Warren-Averbach. To apply the methods of profile analysis, methods were also implemented for the removal of instrumental contributions by the Stokes method and adjustment of functions, removal by the Savitzky-Golay method, correction of the background radiation by the linear adjustment method, correction of the factor of Lorentz-Polarization and correction of dubleto Kalfa2 .
 
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Publishing Date
2018-07-12
 
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