A Study on the Microstructural Control of LAS Ceramics (III) : Influence of Li2O.4B2O3 Frit Addition on the Microstructure and Thermal Expansion of <TEX>$beta$</TEX>-Spodumene made from Kaolinite

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J. Korean Ceram. Soc. > Volume 29(8); 1992 > Article

Journal of the Korean Ceramic Society 1992;29(8): 646.

LAS계 내열충격성 재료의 미세구조 제어(III): Li2O.4B2O3 첨가가 카올린을 공급원으로하여 합성한 $beta$-Spodumene의 미세구조 및 열팽창특성에 미치는 영향

박정현, 김현민, 이화선

연세대학교 세라믹공학과

A Study on the Microstructural Control of LAS Ceramics (III) : Influence of Li2O.4B2O3 Frit Addition on the Microstructure and Thermal Expansion of $beta$-Spodumene made from Kaolinite

ABSTRACT

Effect of Li2O.4B2O3 frit addition on microstructural and thermal expansion behaviour of the $beta$-spodumene ceramics made from kaolinite was investigated. With 2.0~4.0 wt% frit addition, the densification by liquid phase sintering caused low water absorption below 3% and enhancement of beding strength. As the amount of frit addition was increased, thermal expansion coefficient was increased to large scale, but in 2 wt% frit addition, its thermal expansion coefficient was constrained to 1.92$times$10-6$^{circ}C$-1.