The Influence of Bi3+ on the Sintering of Cordierite Glass Ceramic

Han Feng Wang; He Ping Zhou

doi:10.4028/www.scientific.net/KEM.280-283.925

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The Influence of Bi³⁺ on the Sintering of Cordierite Glass Ceramic

Abstract:

The effects of Bi3+ 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 Bi3+ additive was found to promote the phase transition from µ-cordierite to α-cordierite and decrease sintering temperatures. The effect of Bi3+ on the activation of cordierite can be attributed to the nucleation of cordierite. The doping of Bi3+ increased the expansion coefficient and dielectric constant. Too much Bi3+ will inhibit the cordierite crystallization and encourage anorthite crystallization.

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Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

925-928

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.925

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Online since:

February 2007

Authors:

Han Feng Wang, He Ping Zhou

Keywords:

Bi³⁺, Cordierite, Sintering, Sol-Gel Process

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