Quaternary compounds prepared in a CaO-Y2O3-SnO2 system
Quaternary compounds prepared in a CaO-Y2O3-SnO2 system
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DOI：
10.1111/j.1551-2916.2007.01712.x
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发表时间：
2007-06
影响因子：
3.9
通讯作者：
Yusuke Kaminaga;H. Yamane;Takahiro Yamada
中科院分区：
文献类型：
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作者：
Yusuke Kaminaga;H. Yamane;Takahiro Yamada
在1673K下用固相反应法制备了CaO-Y_2O_3-SnO_2系化合物，并用粉末X射线衍射法研究了该系化合物的相关系。除了已报道的CaSnO_3、Ca2SnO_4、Y_2Sn2O_7和四元化合物Ca0.4Y1.2Sn0.4O_3外，还发现了Ca1-−_xY2xSn1-−_xO_4和Ca1-−-y2ySn1-−-yO_3的固溶体系列，它们分别为0-≤-y-≤和0.95-≤-y-≤。对这些固溶体系列的晶胞参数进行了修正。在Ca1−y Y2ySn1−yO3的0.565<；y<；0.714范围内制备的样品中的菱方晶胞参数的变化表明存在Ca0.4Y1.2Sn0.403的固溶体，但除了在y=0.6时外，不能制备出它们的单相。
Compounds in a CaO–Y2O3–SnO2 system were prepared by a solid-state reaction at 1673 K. The phase relation in this system was investigated by powder X-ray diffraction. Besides the previously reported ternary compounds, CaSnO3, Ca2SnO4, Y2Sn2O7, and a quaternary compound Ca0.4Y1.2Sn0.4O3, solid-solution series of Ca2−xY2xSn1−xO4 with 0≤x≤0.5, and Ca1−yY2ySn1−yO3 with 0≤y≤0.2 and 0.95≤y≤1.0 were found. The cell parameters of these solid-solution series were refined. The changes of rhombohedral cell parameters in the samples prepared in the range 0.565<y<0.714 of Ca1−y Y2ySn1−yO3 suggested the existence of solid solutions of Ca0.4Y1.2Sn0.4O3, although their single phases could not be prepared, except at y=0.6.