FORMATION AND SINTERING CHARACTERISTICS OF ALUMINUM BORATE WHISKERS

被引：51

作者：

READEY, MJ

机构：

[1] Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 12期

关键词：

D O I：

10.1111/j.1151-2916.1992.tb04448.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：

A boric acid-stabilized aluminum acetate powder was decomposed to aluminum borate (Al18B4O33) by calcining at 1000-degrees-C. The powder was then ball-milled, compacted, and fired to temperatures of 1500-degrees, 1600-degrees, and 1700-degrees-C for a period of 1 h. The resulting aluminum borate ceramic had a whiskerlike grain morphology, with the whisker length approaching 20 mum and a diameter of 2-3 mum. The sintered compact showed no shrinkage upon firing, had a porosity of approximately 50%, a narrow pore size distribution, and an average pore size of 1-3 mum.

引用

页码：3452 / 3456

页数：5

共 10 条

[1] DIFFUSION SINTERING .1. INITIAL STAGE SINTERING MODELS AND THEIR APPLICATION TO SHRINKAGE OF POWDER COMPACTS [J].