Investigation of the systems KAlF4-M3AlF6 (M=Rb, Cs)

被引：5
|
作者：
Chen, R [1 ]
Zhang, QY [1 ]
机构：
[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China
来源：
THERMOCHIMICA ACTA | 2000年 / 354卷 / 1-2期
关键词：
KAlF4; Rb3AlF6; Cs3AlF6; phase diagram;
D O I：
10.1016/S0040-6031(00)00452-4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Phase relations in the systems KAlF4-Rb3AlF6 and KAlF4-Cs3AlF6 were investigated by DTA and XRD methods for the purpose of finding a low melting, non-corrosive aluminum flux. In each system, congruent compounds Rb3AlF6. 2KAlF(4) and 2Cs(3)AlF(6). 3KAlF(4) were observed, respectively. Eutectics located at 46 mol% Rb3AlF6 and 511 degrees C, 25 mol% Rb3AlF6 and 512 degrees C for the former system, and 48 mol% Cs3AlF6 and 550 degrees C, 25 mol% Cs3AlF6 and 480 degrees C in the latter were confirmed. The phase alpha-2Cs(3)AlF(6). 3KAlF(4) was XRD indexed as having an orthorhombic cell a=10.401+/-0.003, b=10.078+/-0.006, c=8.792+/-0.006 Angstrom. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：117 / 120
页数：4
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