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J. Korean Ceram. Soc. > Volume 48(2); 2011 > Article
Journal of the Korean Ceramic Society 2011;48(2): 141.
doi: https://doi.org/10.4191/kcers.2011.48.2.141
고품질 유리질 카본 코팅을 위한 페놀 수지의 고압 경화
홍석기, 조광연, 권오현1, 조용수1, 장승조2
한국세라믹기술원 미래융합세라믹본부
1연세대학교 신소재공학과
2(주)모던카본
High Pressure Curing of Phenol Resin for High Quality Coating of Glassy Carbon
Seok-Gi Hong, Kwang-Youn Cho, Oh-Hyeon Kwon1, Yong-Soo Cho1, Seung-Jo Jang2
Future Convergence Ceramic Division, Korea Institute of Ceramic Engineering & Technology
1Department of Materials Science and Engineering, Yonsei University
2Modern Carbon Co., Ltd
ABSTRACT
Successful coating of high quality glassy carbon is introduced by applying high pressure during the curing process of dip-coated phenol resin on graphite. The dependence of the applied pressure on the quality of the glassy carbon layer has not been reported so far. Pressure was changed from 0 to 400 psi during curing at $200^{circ}C$. After carbonized at $1100^{circ}C$ in inert atmosphere for the 400 psicured sample, as a promising result, a thick (~ 3 mm) and smooth glassy carbon layer could be obtained without any breakage, and the yield of carbonization was remarkably increased. It is believed that the cross-linking of resins results in decreasing volatile contents and, thus, increasing the yield of the glassy carbon. The origin of the improvement is discussed on the basis of several analytical results including FE-SEM, FT-IT and Raman spectrum.
Key words: Glassy carbon, High pressure, Phenol resin, Graphite, Carbonization
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