Paper Title:
Application of High Temperature Quantitative X-Ray Powder Diffraction on Determination of Ternary System
  Abstract

This paper has put forward a high-temperature quantitative X-ray powder diffraction analysis method for the determination of an isothermal section of a ternary system in comparison with a conventional method. In a three-phase region of the isothermal section at 1150 °C of Cu2O(CuO)-Al2O3-SiO2 pseudo-ternary system, the compositions of the solid phase points of three system points are determined according to the quantitative analysis of the crystalline phases in the samples carried out by Rietveld method. Then the liquid phase point of the three-phase region is determined according to the crosspoints of the tie lines of every pair of system point and solid phase point. The precisions of the analytical results have reached to be 0.1 ~ 5.0 %. By comparison, a good result is obtained for the determination of the liquid phase point of the three-phase region in the isothermal section at 1150 °C when the analytical results of high-temperature RQA analysis are used in determination of the isothermal section of the pseudo-ternary system.

  Info
Periodical
Edited by
Enhou Han, Guanghong Lu and Xiaolin Shu
Pages
355-360
DOI
10.4028/www.scientific.net/MSF.689.355
Citation
Q. G. Xiao, G. C. Ding, T. Z. Long, S. H. Shen, "Application of High Temperature Quantitative X-Ray Powder Diffraction on Determination of Ternary System", Materials Science Forum, Vol. 689, pp. 355-360, 2011
Online since
June 2011
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