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J. Korean Ceram. Soc. > Volume 31(5); 1994 > Article
Journal of the Korean Ceramic Society 1994;31(5): 529.
ICTS법을 이용한 산화물 세라믹스에서의 입계물성평가
김명철, 한응학1, 강영석2, 박순자2
군산대학교 공과대학 재료공학과
1쌍용 중앙연구소
2서울대학교 공과대학 무기재료공학과
Evaluation of Grain Boundary Property in Oxide Ceramics by Isothermal Capacitance Trasient Spectroscopy
ABSTRACT
The principle of the Isothermal Capacitance Transient Spectroscopy[ICTS] were explained to measure the electronic trap levels in oxide ceramics. The measurement apparatus and the theory of the ICTS were described in detail. The trap energy evaluation was performed for the ZnO varistor and BaTiO3 ceramics. The grain boundary interface trap levels were detected at -5$0^{circ}C$~6$0^{circ}C$ in the case of ZnO varistor and PTCR samples, and the bulk trap levels were detected at 2$0^{circ}C$~60~ in BaTiO3. The trap energy levels of the above samples could be directly determined by ICTS measurement.
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