Homogeneous Fabrication of Al2O3–ZrO2–SiC Whisker Composite by Surface‐Induced Coating
作者:
Hyun M. Jang,
Jong H. Moon,
Cheol W. Jang,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 12
页码: 3369-3376
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04436.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Al2O3–ZrO2–SiC whisker composites were prepared by surface‐induced coating of the precursor for the ZrO2phase on the kinetically stable colloid particles of Al2O3and SiC whisker. The fabricated composites were characterized by a uniform spatial distribution of ZrO2and SiC whisker phases throughout the Al2O3matrix. The fracture toughness values of the Al2O3–15 vol% ZrO2–20 vol% SiC whisker composites (∼12 MPa.m1/2) are substantially greater than those of comparable Al2O3–SiC whisker composites, indicating that both the toughening resulting from the process zone mechanism and that caused by the reinforced SiC whiskers work simultaneously in hot‐pre
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