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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The crack-healing behavior and corrosion resistance of SiC ceramics were investigated. Heat treatments were carried out from 900 ℃ to 1300 ℃. A corrosion test SiC was carried out in acid and alkaline solutions under KSL1607. The results showed that heat treatment in air could significantly increase the strength. The heat treatment temperature has a profound influence on the extent of crack healing and the degree of strength recovery. The optimum heat treatment was 1100 ℃ for one hour at an atmospheric level. In the two kinds of solutions, the cracks in a specimen were reduced with increasing time, and the surface of the crack healed specimen had a greater number of black and white spots. The strength of the corroded cracked specimen was similar to that of the cracked specimen. The strength of the corroded crack healed specimen decreased 47% and 75% compared to that of the crack healed specimen in the acid and alkaline solutions, respectively. Therefore, the corrosion of SiC ceramics is faster in an alkaline solution than in an acid solution.
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ABSTRACT
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2. 재료 및 실험방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (15)
참고문헌 신청
1. [학술지(정기간행물)] - Ando, K. / 1998 / A Preliminary Study on Crack Healing Behavior of Si3N4/ SiC Composite Cermiacs / Fatigue & Fracture of Engineering Materials & Structures 21 : 119 ~ 122
2. [학술지(정기간행물)] - Giancarli, L. / 1998 / Design Requirements for SiC : SiC Composites Structural Material in Fusion Power Reactor Blankets / Fusion Engineering and Design 41 : 65 ~ 171
3. [학술지(정기간행물)] - Lee, S. K. / 2005 / Crackhealing Behavior and Resultant Strength Poperties of Silicon Carbide Ceramic / Journal of the European Ceramic Society 25 : 569 ~ 576
4. [학술지(정기간행물)] - 남기우 / 2009 / SiC/SiC 복합재료 세라믹스 표면균열 탐지를 위한 초음파법 적용에 관한 기초연구 / 비파괴검사학회지 29 (5) : 479 ~ 484
5. [학술지(정기간행물)] - Kim, J. S. / 2010 / Critical crack size of healing possibility of SiC ceramics / MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527 : 3236 ~ 3239
2. [학술지(정기간행물)] - Giancarli, L. / 1998 / Design Requirements for SiC : SiC Composites Structural Material in Fusion Power Reactor Blankets / Fusion Engineering and Design 41 : 65 ~ 171
3. [학술지(정기간행물)] - Lee, S. K. / 2005 / Crackhealing Behavior and Resultant Strength Poperties of Silicon Carbide Ceramic / Journal of the European Ceramic Society 25 : 569 ~ 576
4. [학술지(정기간행물)] - 남기우 / 2009 / SiC/SiC 복합재료 세라믹스 표면균열 탐지를 위한 초음파법 적용에 관한 기초연구 / 비파괴검사학회지 29 (5) : 479 ~ 484
5. [학술지(정기간행물)] - Kim, J. S. / 2010 / Critical crack size of healing possibility of SiC ceramics / MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 527 : 3236 ~ 3239
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UCI(KEPA) : I410-ECN-0101-2014-550-002762854