Thermal Shock Resistance of Al(2)O(3)/ZrO(2) (Y(2)O(3)) Composites

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	Thermal Shock Resistance of Al(2)O(3)/ZrO(2) (Y(2)O(3)) Composites
	W. M. Ma; L. Wen; X. D. Sun; T. Cui; G. M. Qiu
	2007
发表期刊	Journal of Rare Earths
ISSN	1002-0721
卷号	25 页码:53-57
摘要	ZrO(2) containing 2% ( mol fraction) Y(2)O(3) and 3% ( mol fraction) Y(2)O(3) were added into Al(2)O(3) matrix, compositing composites with 15% volume fraction of addictives mentioned above. The testing of property and analysis of SEM presented that, after vacuum sintering at 1550 degrees C, thermal shock resistance of two composites was superior to Al(2)O(3) ceramic. The experiment showed that the properties of Al(2)O(3) composites was higher than Al(2)O(3) ceramic, and Al(2)O(3)/ZrO(2)(3Y) was higher than Al(2)O(3)/ZrO(2)(2Y) in thermal shock resistance. Improvement of thermal shock resistance of composites was attributed to many toughness machanisms of ZrO(2)(Y(2)O(3)). By calculation, the fracture energy of Al(2)O(3), Al(2)O(3)/ZrO(2) (2Y) and Al(2)O(3)/ZrO(2)(3Y) was 38100.8 and 126.2 J . m(-2), respectively. Cracks initiation resistance (R') of Al(2)O(3)/ZrO(2)(3Y) and Al(2)O(3)/ZrO(2)(2Y) was higher than Al(2)O(3) ceramic by 1.57 and 1.41 time, respectively, and cracks propagation resistance (R"") was higher than Al(2)O(3) ceramic by 1.46 and 1.38 time, respectively, which was corresponding to the results of residual strength.
部门归属	[ma weimin] shenyang inst chem technol, dept mat sci & engn, shenyang 110142, peoples r china. [wen lei] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [sun xudong; cui tong] northeastern univ, inst mat & met, shenyang 110044, peoples r china. [qiu guanming] changchun univ sci & technol, changchun 130022, peoples r china.;ma, wm (reprint author), shenyang inst chem technol, dept mat sci & engn, shenyang 110142, peoples r china;maweimin56@163.com
关键词	Fracture Energy Transformation Toughness Al(2)o(3)/zro(2) (y(2)o(3)) Composites Thermal Shock Resistance Inorganic Non-metallic Material Rare Earths
URL	查看原文
WOS记录号	WOS:000207611600013
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33754
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. M. Ma,L. Wen,X. D. Sun,et al. Thermal Shock Resistance of Al(2)O(3)/ZrO(2) (Y(2)O(3)) Composites[J]. Journal of Rare Earths,2007,25:53-57.
APA	W. M. Ma,L. Wen,X. D. Sun,T. Cui,&G. M. Qiu.(2007).Thermal Shock Resistance of Al(2)O(3)/ZrO(2) (Y(2)O(3)) Composites.Journal of Rare Earths,25,53-57.
MLA	W. M. Ma,et al."Thermal Shock Resistance of Al(2)O(3)/ZrO(2) (Y(2)O(3)) Composites".Journal of Rare Earths 25(2007):53-57.