Effect of Dry Mixed Grinding of Talc, Kaolinite and Gibbsite on Preparation of Cordierite Ceramics

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Kazumasa Sugiyama¹  Eiki Kasai¹  James M. Filio¹  Fumio Saito¹ 

[1] Institute for Advanced Materials Processing, Tohoku University

关键词: Grinding;    Mixed Grinding;    Planetary Ball Mill;    Cordierite;    X-ray Diffraction Analysis;    Sintering;    Crystalline State;    Amorphous;   

DOI  :  10.1252/jcej.26.565

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Cited-By(5)The effect of dry mixed grinding of tale, kaolinite and gibbsite using a planetary ball mill on the preparation of cordierite ceramics was investigated by XRD, TG-DTA, SEM, TEM-EDX, EPMA, density and specific surface-area measurements. The structures of talc, kaolinite and gibbsite are easily transformed from crystalline state to amorphous state by grinding within 240 min. This behavior leads to homogeneity in the micro-scale composition of the mixture as well as the aggregation of obtained fine particles. The amount of α-cordierite formed in the sintered body is increased with increase in grinding time for the mixture. In addition, α-cordierite phase in the sintered body obtained from the ground mixture is crystallized at a relatively lower sintering temperature than that of the unground mixture.

【 授权许可】

Unknown