Phase equilibria in the BaO-Bi2O3-B2O3 system

被引：25
|
作者：
Egorysheva, A. V. [1 ]
Skorikov, V. M. [1 ]
Volodin, V. D. [1 ]
Myslitskii, O. E. [1 ]
Kargin, Yu. F. [1 ]
机构：
[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 51卷 / 12期
关键词：
D O I：
10.1134/S0036023606120187
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Phase equilibria in the BaO-Bi2O3-B2O3 system have been investigated by X-ray powder diffraction analysis and DTA. Quasi-binary sections have been determined, and an isothermal section of the system in the subsolidus region has been constructed. The BaO-Bi2O3-B2O3 ternary system has been divided into 22 triangles of coexisting phases. It has been found that four bismuth barium borates exist, namely, Ba3BiB3O9, BaBi2B4O10, BaBiB11O19, and BaBiBO4. Ba3BiB3O9 undergoes a phase transition at 850 degrees C and exists up to 885 degrees C, where it decomposes in the solid state. BaBiB11O19 and BaBi2B4O10 melt congruently at 807 and 730 degrees C, respectively. BaBiBO4 melts incongruently at 780 degrees C. X-ray powder diffraction data for the low-temperature polymorph of Ba3BiB3O9 are presented.
引用
收藏
页码：1956 / 1960
页数：5
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