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Phase Diagram, Structure and Fluorescence Spectra of CsxRb1-xYbI3 System
Author(s): 
Pages: 1296-1299
Year: Issue:  8
Journal: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES

Keyword:  低价稀土碘化物一步合成法相图固溶体;
Abstract: 用一步合成法对CsxRb1-xYbI3体系进行了全组成范围内的合成,采用差热分析和X射线粉末相分析法制作了相图,用体系的荧光光谱进一步验证了相图的可靠性.该体系形成一个既有包晶反应又有类低共熔反应的有限固溶体,包晶反应温度和类低共熔反应温度分别为627℃和371℃.相分析确定了RbYbI3高温相及三类固溶体的结构:0≤x≤O.5形成以RbYbI3为基的NH4CdCl3型固溶体和以RbYbl3高温相为基的CairO3型固溶体,O.75≤x≤1.0形成以CsYbl3为基的GdFeO3型固溶体.
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