Fabrication of finegrained Al2O3 ceramic at low sintering temperature

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	Fabrication of finegrained Al2O3 ceramic at low sintering temperature
	H. L. Li; M. C. Wang; J. B. Zhao; W. J. Liu
	2005
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	15 期号:2 页码:247-251
摘要	A research on fabrication of finegrained Al2O3 ceramic at lower sintering temperature was carried out. Al2O3 powder with 50 nm in diameter is compounded with 11.24%Al and 4.75%Fe(mass fraction) by high-energy ball-milling. Al is got from Al powder which is a component of the materials being milled and Fe from steel milling balls and milling jar during the milling. In this way, nearly no impurity is brought into the composite powder during milling. With hot pressing of the composite powder and pure Al2O3 powder, it is proved that Al2O3 powder can be densified at lower sintering temperature when the powder is compounded in this way. Al2OC and AlFe form during sintering process of the composite powder. With the reactive sintering and multiphase sintering mechanisms, finegrained Al2O3 ceramic is fabricated at low sintering temperature.
部门归属	chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china. chinese acad sci, grad sch, beijing 100039, peoples r china. chinese acad sci, shenyang inst automat, shenyang 110016, peoples r china.;wang, mc (reprint author), chinese acad sci, met res inst, state key lab corros & protect, shenyang 110016, peoples r china;wmc@imr.ac.cn
关键词	Finegrained Al2o3 Ceramic Sintering Nanometer Al2o3-al-fe Composite Powder High-energy Ball-milling Strength Toughness
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WOS记录号	WOS:000228956700009
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34899
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. L. Li,M. C. Wang,J. B. Zhao,et al. Fabrication of finegrained Al2O3 ceramic at low sintering temperature[J]. Transactions of Nonferrous Metals Society of China,2005,15(2):247-251.
APA	H. L. Li,M. C. Wang,J. B. Zhao,&W. J. Liu.(2005).Fabrication of finegrained Al2O3 ceramic at low sintering temperature.Transactions of Nonferrous Metals Society of China,15(2),247-251.
MLA	H. L. Li,et al."Fabrication of finegrained Al2O3 ceramic at low sintering temperature".Transactions of Nonferrous Metals Society of China 15.2(2005):247-251.