Formation and Sintering Characteristics of Aluminum Borate Whiskers
作者:
Michael J. Readey,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 12
页码: 3452-3456
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04448.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
A boric acid‐stabilized aluminum acetate powder was decomposed to aluminum borate (Al18B4O33) by calcining at 1000°C. The powder was then ball‐milled, compacted, and fired to temperatures of 1500°, 1600°, and 1700°C for a period of 1 h. The resulting aluminum borate ceramic had a whiskerlike grain morphology, with the whisker length approaching 20 μm and a diameter of 2–3 μm. The sintered compact showed no shrinkage upon firing, had a porosity of ∼50%, a narrow pore size distribution, and an average pore s
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