Study of the Processes of Non-Stoichiometric Compositions Based on CsSiB3O7

被引：0
作者：
Derkacheva, E. S. [1 ]
Ershov, D. S. [1 ]
机构：
[1] Russian Acad Sci, Grebenshchikov Inst Silicate Chem, St Petersburg 199034, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2024年 / 50卷 / 03期
关键词：
cesium borosilicates; boropollucite; phase formation; melting; Cs2O-B2O3-SiO2; CsSiB3O7; Cs2B4SiO9; kirchhoffite; THERMODYNAMIC PROPERTIES; CS2O-B2O3-SIO2; SYSTEM; CRYSTAL-STRUCTURE; THERMAL-BEHAVIOR; BOROSILICATE;
D O I：
10.1134/S1087659624600704
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the Cs2O-B2O3-SiO2 system, samples with different stoichiometric ratios of Cs2O : B2O3 : SiO2-1 : 3 : 2 (CsSiB3O7) and 1.25 : 2.5 : 2-were obtained by solid-phase reactions. The phase formation of cesium borosilicate & Scy;sSiB(3)O(7) was studied. In samples with a stoichiometric ratio of 1 : 3 : 2, CsSiB3O7 crystallizes with impurities of kirchhoffite and CsB3O5 at 680 degrees C. At 750 degrees C, melting is observed with the formation of cubic boropollucite CsBSi2O6. In samples of nonstoichiometric composition, Cs2B4SiO9 crystallizes at 680 degrees C along with CsB3O5. With an increase in temperature to 750 degrees C, only boropollucite is formed.
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页码：323 / 327
页数：5
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