A study on the phase diagram of AlF3-CsF system

被引：11
|
作者：
Chen, R [1 ]
Cao, J [1 ]
Zhang, QY [1 ]
机构：
[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China
来源：
THERMOCHIMICA ACTA | 1997年 / 303卷 / 02期
关键词：
aluminum fluoride; cesium fluoride; crystal structure; phase diagram; system;
D O I：
10.1016/S0040-6031(97)00236-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Phase relations of the AlF3-CsF system have been investigated by the methods of DTA and XRD with quenching technique. Four compounds were identified: Cs3AlF6, CsAlF4, CsF . 2AlF(3) and CsF.3AlF(3). Cs3AlF6 melts congruently at 790 degrees C. The first eutectic, E-1, between Cs3AlF6 and CsF is located in 10.0 mol% AlF3 at 654 degrees C. CsF . 2AlF(3) and CsF . 3AlF(3) melt incongruently at 508 degrees and 653 degrees C, respectively. The second eutectic, E-2, was observed in 42.0 mol% AlF3 at 471 degrees C. The compound CsAlF4 formed in the solid eutectic when cooled below 443 degrees C. CsAlF4 has alpha and beta forms, transformation of which takes place reversibly at 422 degrees C. All phase structures in the system were confirmed by X-ray powder diffraction analysis. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码：145 / 150
页数：6
相关论文
共 50 条
  • [41] Phase diagram of the CaSiO3-SrGeO3 system
    Petrov, S.A., 1844, Maik Nauka-Interperiodica Publishing (73)
  • [42] Phase diagram of the system CaGeO3-SrGeO3
    Shitova, VI
    Mikirticheva, GA
    Grabovenko, LY
    Kuchaeva, SK
    Romanov, DP
    Grebenshchikov, RG
    RUSSIAN JOURNAL OF APPLIED CHEMISTRY, 2000, 73 (04) : 561 - 564
  • [43] Phase diagram of the CaSiO3-SrGeO3 system
    Petrov, SA
    Mikirticheva, GA
    Shitova, VI
    Grabovenko, LY
    Kuchaeva, SK
    Grebenshchikov, RG
    RUSSIAN JOURNAL OF APPLIED CHEMISTRY, 2000, 73 (11) : 1844 - 1847
  • [44] Phase diagram of BaTiO3-SrTiO3 system
    Lemanov, VV
    Smirnova, EP
    Tarakanov, EA
    FIZIKA TVERDOGO TELA, 1995, 37 (08): : 2476 - 2480
  • [45] Phase diagram of the AgNO3-CsNO3 system
    Hellali, D
    Zamali, H
    Sebaoun, A
    Jemal, M
    JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 1999, 57 (02): : 569 - 574
  • [46] LIQUIDUS TEMPERATURES OF THE SYSTEM Na3AlF6-K3AlF6-AlF3
    Lai Yanqing
    Xin Pengfei
    Tian Zhongliang
    Wei Chenjuan
    Chen Duan
    Li Jie
    LIGHT METALS 2012, 2012, : 691 - 694
  • [47] PHYSICOCHEMICAL STUDIES OF RARE ALKALI-METAL FLUOROALUMINATE SYSTEMS .3. MELTING DIAGRAM OF LI3ALF6-CS3ALF6 SYSTEM
    BABAYAN, GG
    TERARAKE.KA
    MKRTCHYA.RT
    GAMBARYA.SG
    ARMYANSKII KHIMICHESKII ZHURNAL, 1972, 25 (03): : 195 - &
  • [48] Phase equilibria in the system KF-AlF3-Al2O3
    Danielik, V
    CHEMICAL PAPERS, 2005, 59 (02) : 81 - 84
  • [49] The phase diagram of the CeI3-Ce system
    Konings, RJM
    Kok-Scheele, A
    THERMOCHIMICA ACTA, 1999, 331 (01) : 45 - 48
  • [50] Phase diagram of KF-InF3 system
    Chen, R
    Zhang, QY
    JOURNAL OF FLUORINE CHEMISTRY, 2003, 124 (01) : 1 - 3
12345