| 액상공정을 이용한 탄화규소 세라믹 후막의 제조 |
| 김행만, 김준수, 이홍림1, 안영철2, 윤존도1 |
경남대학교 대학원 첨단공학과
1경남대학교 나노신소재공학과
2경남대학교 기계자동화공학부 |
| Preparation of Silicon Carbide Ceramic Thick Films by Liquid Process |
| Haeng-Man Kim, Jun-Su Kim, Hong-Rim Lee1, Young-Cheol Ahn2, Jon-Do Yun1 |
Department of Advanced Engineering, Graduate School, Kyungnam University
1Department of Nano Science and Engineering, Kyungnam University
2School of Mechanical Engineering and Automation, Kyungnam University |
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| ABSTRACT |
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Silicon carbide ceramics are used for oxidation resistive coating films due to their excellent properties like high strength, good oxidation resistance, and good abrasion resistance, but they have poor formability and are prepared by vapor process which is complicated, costly, and sometimes hazardous. In this study, preparation of silicon carbide coating film by liquid process using polymer precursor was attempted. Coating film was prepared by dip coating on substrate followed by heat treatment in argon at $1200^{circ}C$. By changing the dipping speed, the thickness was controlled. The effects of plasticizer, binder, or fiber addition on suppression of crack generation in the polymer and ceramic films were examined. It was found that fiber additives was effective for suppressing crack generation. |
| Key words:
Polymer-derived ceramics, Dip coating, Additives, Silicon carbide thick film |
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