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	The influence of Bi/sup 3+/ on the sintering of cordierite glass ceramic
	Hanfeng Wang ; Heping Zhou
	2010-05-10 ; 2010-05-10
会议名称	Key Engineering Materials ; 3rd International Conference on High-Performance Ceramics (CICC-3) ; Shenzhen, China ; INSPEC
关键词	Experimental/ additives aluminosilicate glasses bismuth calcium compounds crystallisation doping glass ceramics glass structure magnesium compounds permittivity sintering sol-gel processing solid-state phase transformations/ sintering cordierite glass ceramics microstructures cordierite powders sol-gel processing nucleation Bi/sup 3+/ additive phase transition expansion coefficient dielectric constant cordierite crystallization anorthite crystallization doping MgO-Al/sub 2/O/sub 3/-SiO/sub 2/:Bi CaO-Al/sub 2/O/sub 3/-SiO/sub 2/:Bi/ A8120Q Preparation of glass-based composites A8120E Powder techniques, compaction and sintering A6470K Solid-solid transitions A7720 Dielectric permittivity A6140D Structure of glasses/ MgOAl2O3SiO2:Bi/ss MgOAl2O3SiO2/ss Al2O3/ss SiO2/ss Al2/ss Al/ss Bi/ss Mg/ss O2/ss O3/ss Si/ss O/ss Bi/el Bi/dop CaOAl2O3SiO2:Bi/ss CaOAl2O3SiO2/ss Al2O3/ss SiO2/ss Al2/ss Al/ss Bi/ss Ca/ss O2/ss O3/ss Si/ss O/ss Bi/el Bi/dop
中文摘要	The effects of Bi/sup 3+/ addition on the sintering performance and microstructural evolution of cordierite were analyzed in this paper. Cordierite powders were prepared by sol-gel processing. As nucleating agent, the Bi/sup 3+/ additive was found to promote the phase transition from mu -cordierite to alpha -cordierite and decrease sintering temperatures. The effect of Bi/sup 3+/ on the activation of cordierite can be attributed to the nucleation of cordierite. The doping of Bi/sup 3+/ increased the expansion coefficient and dielectric constant. Too much Bi/sup 3+/ inhibits the cordierite crystallization and encourage anorthite crystallization.
会议录出版者	Trans Tech Publications ; Switzerland
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18048]
专题	清华大学
推荐引用方式 GB/T 7714	Hanfeng Wang,Heping Zhou. The influence of Bi/sup 3+/ on the sintering of cordierite glass ceramic[C]. 见:Key Engineering Materials, 3rd International Conference on High-Performance Ceramics (CICC-3), Shenzhen, China, INSPEC.

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