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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.12
- 수록면
- 67 - 72 (6page)
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In the present study, crack healing effect and residual stress of Al₂O₃ ceramics were investigated by changing the sintering temperature and heat treatment conditions. And also it was investigated that the influence of different filler loadings of nano-sized SiC particles on the crack healing behavior of Al₂O₃ ceramics. The test samples were characterized by three point bend flexural tests to evaluate their mechanical properties. The morphological changes were studied by FE-SEM and EDS. The test results indicated that the Al₂O₃ with nano-sized SiC ceramics sintered at 1800 ℃ were showed highest density. Sintering temperature at 1800 ℃, the bending strength of heat treatment in air atmosphere specimens showed about 42 % increment in comparison to the un-heat treated specimens. The cracked specimens can be healed by heat treatment in vacuum atmosphere but the crack healing effect of Al₂O₃ ceramics, which is heat treated in air atmosphere was higher than that of heat treated in vacuum atmosphere. Al₂O₃ with 30 wt% of SiC ceramics indicated higher crack healing ability than that with 15 wt% of SiC ceramics. The FE-SEM images showed that the median cracks and pores were disappeared after heat treatment in air.
목차
Abstract
1. 서론
2. 실험
3. 실험 결과 및 고찰
4. 결론
참고 문헌
참고문헌 (12)
참고문헌 신청
1. [학술지(정기간행물)] - 문용재 / 2010 / 에폭시수지 복합재료의 기계적․열적 성질에 대한 TiO2 나노입자의 영향 / 한국동력기계공학회지 14 (4) : 68 ~ 75
2. [학술지(정기간행물)] - K. Ando / 2002 / (Crack-healing + Proof Test):A New Methodology to Guarantee the Structural Integrity of a Ceramics Component / Journal of the European Ceramic Society 22 : 121 ~ 128
3. [학술지(정기간행물)] - Toshio Osada / 2007 / Strength Recovery Behavior of Machined Al2O3/SiC Nano-composite Ceramics by Crack-healing / Journal of the European Ceramic Society 27 : 3261 ~ 3267
4. [학술지(정기간행물)] - K. Ando / 2002 / High Temperature and Fatigue Strength of Ccrack-healing Mullite/Silicon Carbide Ceramics / Journal of the Korean Society for Power System Engineering 6 (1) : 88 ~ 95
5. [학술지(정기간행물)] - B. A. Kim / 2009 / Mechanical Properties of Silicon Carbide Sintered with Additive Y2Al5O12 / Journal of Nuclear Materials 386-388 : 1095 ~ 1097
2. [학술지(정기간행물)] - K. Ando / 2002 / (Crack-healing + Proof Test):A New Methodology to Guarantee the Structural Integrity of a Ceramics Component / Journal of the European Ceramic Society 22 : 121 ~ 128
3. [학술지(정기간행물)] - Toshio Osada / 2007 / Strength Recovery Behavior of Machined Al2O3/SiC Nano-composite Ceramics by Crack-healing / Journal of the European Ceramic Society 27 : 3261 ~ 3267
4. [학술지(정기간행물)] - K. Ando / 2002 / High Temperature and Fatigue Strength of Ccrack-healing Mullite/Silicon Carbide Ceramics / Journal of the Korean Society for Power System Engineering 6 (1) : 88 ~ 95
5. [학술지(정기간행물)] - B. A. Kim / 2009 / Mechanical Properties of Silicon Carbide Sintered with Additive Y2Al5O12 / Journal of Nuclear Materials 386-388 : 1095 ~ 1097
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UCI(KEPA) : I410-ECN-0101-2013-550-001231525