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Journal of the Korean Ceramic Society 1992;29(10): 785. |
| 흑연의 내산화성 증진을 위한 실험 계획법에 따른 탄화규소 코팅에 관한 연구 |
| 서임춘, 리원준, 예병한1, 박종욱 |
한국과학기술원 전자재료공학과
1국방과학연구소 |
| A Study of the Pack Cemented SiC Coating on Graphite by Experimental Design |
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| ABSTRACT |
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A study of the pack cemcented SiC coating on graphite was performed and the process conditions were evaluated by means of experimental design. The content of Si, P2O5, B and Al2O3 reaction temperature, reaction time and acid treatment wast tested as the experimental variables. The results were analyzed and compared by the characteristic value of 10% weight loss by oxidation. The acid treatment exhibited the most effective anti-oxidation property and the optimum conditions were the powder composition of 20% Si, 3% B and 77% SiC, the reaction temperature of 1550$^{circ}C$ for 7 hours with phosphoric acid treatment. The pack coating performed under this condition improved the 10% weight loss oxidation temperature by 514$^{circ}C$ compared to the bare graphite. |
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