PREPARATION AND CHARACTERIZATION OF ALUMINUM BORATE

被引：66

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.

引用

页码：2605 / 2609

页数：5

共 11 条

[1]

BAUMANN HN, 1942, J AM CERAM SOC, V25, P392

[2]

BERRY KL, 1963, Patent No. 3080242

[3]

DOERNER P, 1979, CALPHAD, V3, P241

[4]

GIELISSE PJM, 1962, NATURE, V195, P70

[5]

IHARA M, 1980, YOGYO KYOKAISHI, V33, P77

[6]

MCARTHUR DP, 1974, Patent No. 3856705

[7]

RAY SP, 1989, Patent No. 4774210

[8]

RAY SP, 1989, Patent No. 4804642

[9] UBER ALUMINIUMBORATE [J].

SCHOLZE, H .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1956, 284 (4-6) :272-277

[10]

Sowman H. G., 1974, U.S. Patent, Patent No. [3,795,524, 3795524]

← 1 2 →