PHASE-RELATIONS IN THE SYSTEM CAO-B2O3-SIO2

被引：26
|
作者：
FLETCHER, JG
GLASSER, FP
机构：
[1] Department of Chemistry, Aberdeen University, Meston Walk, AB9 2UE, Aberdeen
来源：
JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 10期
关键词：
D O I：
10.1007/BF00356203
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Phase relations in the lime-rich portion of the system CaO-B2O3-SiO2 have been studied by microscopy, infrared spectroscopy and X-ray powder diffraction of heated mixtures and quenched charges. Extensive solid solution of B2O3 in Ca2SiO4 occurs along the Ca2SiO4-Ca3B2O6 boundary, which has been studied in detail. It contains a ternary compound, Ca11B2Si4O22, which is stable to liquidus temperatures, melting incongruently to Ca2SiO4 and liquid at 1420-degrees-C. Ca11B2Si4O22 forms a eutectic with Ca3B2O6 at 1400-degrees-C and, in the ternary system, with CaO and Ca3B2O6 at 1390-degrees-C.
引用
收藏
页码：2677 / 2686
页数：10
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