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	Preparation of dense sic ceramics by aqueous gelcasting
	Tao, Zhang; Zhang Zhao-Quan; Zhang Jing-Xian; Lin Qing-Ling; Jiang Dong-Liang
刊名	Journal of inorganic materials
	2007-05-01
卷号	22期号:3页码:489-492
关键词	Sic Gelcasting Pressureless-sintering
ISSN号	1000-324X
通讯作者	Tao, zhang()
英文摘要	Concentrated sic slurry with y2o3 and al2o3 as sintering assistants was prepared, by using the medium of gelcasting premix solution and ph adjusting reagent of tmah (tetramethylammonium hydroxide). the measurements of zeta potential, sedimentation and viscosity show that sic, y2o3 and al2o3 can disperse well in premix solution at basic region. rheological study clarifies that concentrated sic geleasting slurry has low viscosity and shear stress after adding 0.5wt% tmah, which is suitable to cast into the mold. the green body formed by gelcasting was pressureless sintered at 2000 degrees c for 1h. sem image of sic ceramic indicates that the structure of sic sintered body is homogeneous and no obvious defects existing. the relative density, flexural strength, hardness and toughness of sic sintered body are (98.1 +/- 0.2)%, (722 +/- 70)mpa, (20.18 +/- 0.75)gpa and (4.00 +/- 0.20)mpa center dot m(1/2), respectively.
WOS关键词	SILICON-CARBIDE ; ALUMINA
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000246716400023
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2380416
专题	中国科学院大学
通讯作者	Tao, Zhang
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tao, Zhang,Zhang Zhao-Quan,Zhang Jing-Xian,et al. Preparation of dense sic ceramics by aqueous gelcasting[J]. Journal of inorganic materials,2007,22(3):489-492.
APA	Tao, Zhang,Zhang Zhao-Quan,Zhang Jing-Xian,Lin Qing-Ling,&Jiang Dong-Liang.(2007).Preparation of dense sic ceramics by aqueous gelcasting.Journal of inorganic materials,22(3),489-492.
MLA	Tao, Zhang,et al."Preparation of dense sic ceramics by aqueous gelcasting".Journal of inorganic materials 22.3(2007):489-492.

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