Synthesis and phase formation in M0.5(1+x)2+FexTi2−x(PO4)3 phosphate series

被引：0
|
作者：
V. I. Pet’kov
I. A. Shchelokov
E. A. Asabina
V. S. Kurazhkovskaya
D. A. Rusakov
K. V. Pokholok
B. I. Lazoryak
机构：
[1] Nizhni Novgorod State University,
[2] Moscow State University,undefined
来源：
Russian Journal of Inorganic Chemistry | 2006年 / 51卷
关键词：
Differential Thermal Analysis; Differential Thermal Analysis Curve; Zirconium Phosphate; Isotropic Thermal Parameter; Titanium Phosphate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
New complex phosphates of titanium, iron, and alkaline-earth metals have been synthesized. X-ray powder diffraction, differential thermal analysis (DTA), and IR spectroscopy are used to study phase formation in the series of M0.5(1+x)FexTi2−x(PO4)3 (M = Mg, Ca, Sr, Ba) phosphates. Individual compounds and solid solutions are found to crystallize in the NaZr2(PO4)3 and K2Mg2(SO4)3 structure types. Their crystal parameters are calculated. CaFeTi(PO4)3 is studied using Mössbauer spectroscopy. Its structure is refined by the Rietveld method: space group \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $$R\bar 3$$ \end{document}c, Z = 6, a = 8.5172(1), Å, c = 21.7739(4) Å, V = 1367.91(4) Å3.
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页码：1855 / 1863
页数：8
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