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J. Korean Ceram. Soc. > Volume 36(10); 1999 > Article
Journal of the Korean Ceramic Society 1999;36(10): 1069.
알루미나 세라믹스의 열충격 거동에 대한 통계적 해석
한봉석, 이홍림
연세대학교 세라믹공학과
Statistical Analysis of Thermal Shock Behavior of Alumina Ceramics
Thermal shock behavior of alumina ceramics was analyzed by statistical method and thermal shock Weibull plot was proposed as a new method to represent the thermal shock behavior of ceramics. Three point bending strength of alumina specimens was measured after quenching into the water of 20$^{circ}C$ Failure probability of the specimens was calculated at each thermal shock temperature difference. Weibull distribution function was adopted to represent the thermal shock Weibull plot. New thermal shock Weibull plot can represent the thermal shock failure probbility and the thermal shock fracture bhavior of ceramics. Thermal shock Weibull plot is more suitable to represent the thermal shock behaivor of ceramics than the observation method of critical thermal shock temperature difference
Key words: Thermal shock, Statistical analysis, Weibull plot, Shape factor, Failure probability
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