Crystal structures and phase stability in pseudobinary CaAl2-xZnx
Crystal structures and phase stability in pseudobinary CaAl2-xZnx
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DOI：
10.1016/j.jssc.2006.05.018
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发表时间：
2006-08
影响因子：
3.3
通讯作者：
K. Söderberg;M. Boström;Y. Kubota;T. Nishimatsu;R. Niewa;U. Häussermann;Y. Grin;O. Terasaki
中科院分区：
文献类型：
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作者：
K. Söderberg;M. Boström;Y. Kubota;T. Nishimatsu;R. Niewa;U. Häussermann;Y. Grin;O. Terasaki
用这些元素合成了准二元系CaAl_2-−_xZn_x(0-⩽_x-⩽_2)样品。观察到三种不同的结构类型，即C15和C36Laves相结构以及KHg2(CeCu2)结构。用电子显微镜、热分析和X-射线粉末衍射仪研究了基相的结构和均一范围。对于C15、C36和KHg2结构类型，不同结构类型的稳定性范围分别为0⩽x⩽0.18、0.2 8⩽x⩽0.68和0.93⩽x⩽2。
Samples in the pseudobinary system CaAl2−xZnx(0⩽x⩽2) were synthesised from the elements. Three different structure types, the C15 and C36 Laves phase structures and the KHg2(CeCu2) structure, were observed. The structures and homogeneity ranges of the underlying phases were investigated by electron microscopy and thermal analysis as well as X-ray powder diffraction. The stability ranges for the different structure types were found to be 0⩽x⩽0.18, 0.28⩽x⩽0.68 and 0.93⩽x⩽2 for the C15, C36 and KHg2structure types, respectively.