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	Fabrication of porous alumina ceramics with high porosity and high strength
	Liu Weiyuan ; Wang Chang'an ; Zhou Lizhong ; Huang Yong
	2010-10-12 ; 2010-10-12
关键词	Experimental/ alumina casting ceramics compressive strength pH porosity porous materials rheology sintering slurries viscosity/ porous alumina ceramics fabrication porosity solid loading slurry system tert-butyl alcohol acrylamide powder pH values slurry rheology citric acid viscosity gel-casting method sintering temperature compressive strength Al/sub 2/O/sub 3// A8120L Preparation of ceramics and refractories A8120E Powder techniques, compaction and sintering A6220F Deformation and plasticity A8140L Deformation, plasticity and creep A6140G Structure of powders and porous materials/ Al2O3/bin Al2/bin O3/bin Al/bin O/bin
中文摘要	In an ultra low solid loading slurry system constituted of tert-butyl alcohol, acrylamide and alumina powder, the influences of different dispersants and pH values on the slurry rheology were investigated. When the dispersant is citric acid with a pH value of around 6, alumina slurry with 10% (in volume) solid loading exhibits the lowest viscosity. Since tert-butyl alcohol is extremely easy to volatilize, porous alumina ceramics with high porosity and high strength were successfully fabricated by the gel-casting method. The effects of solid loading and sintering temperature on the porosity and compressive strength were also researched. The compressive strength of sintered alumina ceramics with 74% porosity can over 8 MPa.
语种	中文
出版者	Chinese Ceramic Society ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78372]
专题	清华大学
推荐引用方式 GB/T 7714	Liu Weiyuan,Wang Chang'an,Zhou Lizhong,et al. Fabrication of porous alumina ceramics with high porosity and high strength[J],2010, 2010.
APA	Liu Weiyuan,Wang Chang'an,Zhou Lizhong,&Huang Yong.(2010).Fabrication of porous alumina ceramics with high porosity and high strength..
MLA	Liu Weiyuan,et al."Fabrication of porous alumina ceramics with high porosity and high strength".(2010).

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