PREPARATION AND CHARACTERIZATION OF ALUMINUM BORATE

被引：64
作者：
RAY, SP
机构：
[1] Chemical Systems Division, Alcoa Technical Center, Alcoa Center, Pennsylvania
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 09期
关键词：
D O I：
10.1111/j.1151-2916.1992.tb05622.x
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：
Aluminum borate, 9Al2O3.2B2O3 or Al18B4O33, was synthesized by the reaction of stoichiometric amounts of alpha-Al2O3 and B2O3. The Al18B4O33 Material was formed into a dense ceramic by pressureless sintering with CaO, MgO, or CaAl2B2O7 additives. The material was characterized by low bulk density, moderate coefficient of thermal expansion (3 x 10(-6)/degrees-C to 5 x 10(-6)/degrees-C), moderate strength (210 to 324 MPa), and low dielectric constant.
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页码：2605 / 2609
页数：5
相关论文
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