The Study for the Crystallization Behavior of Conventionally Heated and Microwave Heat-treated Inorganic Polymers

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J. Korean Ceram. Soc. > Volume 34(9); 1997 > Article

Journal of the Korean Ceramic Society 1997;34(9): 935.

재래식 열과 마이크로파 에너지에 의해 열처리된 무기고분자의 결정화 거동에 관한 연구

박성수, 차무경, 류봉기, 신학기¹, 박희찬

부산대학교 무기재료공학과
¹경남전문대학 공업화학과

The Study for the Crystallization Behavior of Conventionally Heated and Microwave Heat-treated Inorganic Polymers

ABSTRACT

This study investigated the crystallization behavior in PbO-ZnO-B2O3-TiO2 system sealing glass, inorganic polymer heat-treated by conventional heat and microwave energy. After determining heat-treated temperature for crystallization and characteristic points by DTA analysis, samples were heat-treated in a classical electric furnace and a home-style microwave oven (LG Electronic Co., 2.45 GHz, 700 W). A microwave heat-treated sample had the growth of PbTiO3 crystal at 45$0^{circ}C$, 2$0^{circ}C$ lower than that of a conventionally heat-treated sample. Also, it had crystallinity about 20% higher than the conventionally heat-treated sample. At 49$0^{circ}C$, the size of PbTiO3 crystal in the conventionally heat-treated sample was larger than that in the microwave heat-treated sample due to longer heat-treated time.

Key words: Microwave, Conventional, Heat-treated, Sealing glass, Crystallinity