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Quantitative Phase Analysis Using the Whole–Powder– Pattern Decomposition Method: II. Solution Using External Standard Materials

Published online by Cambridge University Press:  06 March 2019

Hideo Toraya
Hideo Toraya*
Affiliation:
Ceramics Research Laboratory Nagoya Institute of Technology Asahigaoka, Tajimi 507, Japan
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Abstract

A new procedure for the quantitative phase analysis using the whole–powder–pattern decomposition method has been proposed (Toraya and Tsusaka, 1995). The procedure is based on the determination of the scale factor for the profile intensity of each phase in a mixture, which is identical to the ratio of integrated intensity in a mixture to that of the corresponding reflection in a single component sample. Weight fractious were obtained by solving the simultaneous equations, of which coefficients include the scale factors and the mass absorption coefficients. In a previous study, the mass absorption coefficients were calculated from chemical compositions and u,/p data of respective phases. In the present study, an alternative way of deriving the weight fraction without using the knowledge of chemical composition is proposed.

Type
II. Phase Analysis, Accuracy and Standards in Powder Diffraction
Information
Advances in X-Ray Analysis , Volume 38: Forty-third Annual Conference on Applications of X-ray Analysis , 1994 , pp. 69 - 73
Copyright
Copyright © International Centre for Diffraction Data 1994

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