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题名: Wear resistance of reaction sintered alumina/mullite composites
作者: Luo, HH;  Zhang, FC;  Roberts, SG
发表日期: 2008
摘要: Alumina and alumina/mullite composites with mullite content of 0.96-8.72 vol.% were subjected to an abrasive wear test under loads of 0.1-2.0 N with a ball-on-disc apparatus. The wear rate and area fraction of pullout f(po) on the worn surfaces were measured. The wear resistances of the alumina/mullite composites were better by a factor of 1-2 than that of pure alumina. The main wear mechanism of alumina is fracture wear, and for alumina/mullite composites, fracture wear and plastic wear mechanisms work together. The influence of mechanical properties on wear resistance was estimated by Evans' method. It was found that the wear rate depends on f(po), and the primary reason for the better wear resistance of alumina/mullite composites is the reduction off, induced by fracture mode transition. (c) 2007 Elsevier B.V. All rights reserved.
KOS主题词: Mullite;  Composites;  Composite materials;  seizure
刊名: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Luo, HH ; Zhang, FC ; Roberts, SG .Wear resistance of reaction sintered alumina/mullite composites ,MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2008 ,478(39815): 270-275
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