The Effect of Paste Composition and Particle Size on the Alumina Ceramics Metallizing

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J. Korean Ceram. Soc. > Volume 30(5); 1993 > Article

Journal of the Korean Ceramic Society 1993;30(5): 347.

Paste의 조성과 입도 변화가 알루미나 세라믹스의 Metallizing에 미치는 영향에 관한 연구

김태송, 김성태, 김종희

한국과학기술원 무기재료공학과

The Effect of Paste Composition and Particle Size on the Alumina Ceramics Metallizing

ABSTRACT

In joining alumina ceramics to metal by using Mo-Mn metallizing process the effects of metallizing thickness, temperature, and the composition of paste on the bond strength and the microstructure of joining interface were investigated. The bond strength variation in the range of metallizing temperature, 1350~155$0^{circ}C$ was more than 150MPa above 145$0^{circ}C$ and the optimum metallizing thickness was 30${mu}{textrm}{m}$. The optimum contents of Mn in Mo-Mn paste was 5% due to the bond strength decrease with the increase of addition. The effect of SiO2 addition in paste on bond strength was saturated around 200MPa. It was also observed that as the particle size of Mo decreased, the joinning with higher bond strength was shown in spite of low metallizing temperature.