Effects of Internal Standards and Peak Profile Functions on Quantitative XRD Phase Analysis of Cement and Its Hydrates
Quantitative X-Ray diffraction (QXRD) combined with the Rietveld refinement method allows direct determination of crystalline phase content of cement and its hydrates. However, relatively precise results need the correction of proper internal standards and the use of matched peak profile functions with masterly refinement strategies. The aim of this paper is to research and discuss effects of these factors on the quantitative phase analysis results. For this purpose, different internal standards and peak profile functions with corresponding refinement strategies were attempted in experiments and refinements. The results indicate that AI2O3 as internal standard is more suitable for cement and its hydrates than ZnO, and the better peak profile function is CW function 2 rather than function 3 in GSAS.
Yongqi Wei Wu Yao Wei Wang
Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
国际会议
长沙
英文
424-428
2011-06-30（万方平台首次上网日期，不代表论文的发表时间）