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http://dx.doi.org/10.6111/JKCGCT.2022.32.3.089

Morphology control of glassy carbon coating layer to additive ethylene glycol and phenolic resin  

Joo, Sang Hyun (Convergence Transport Materials Center, Korea Institute of Ceramic Engineering and Technology)
Joo, Young Jun (Convergence Transport Materials Center, Korea Institute of Ceramic Engineering and Technology)
Lee, Hyuk Jun (Convergence Transport Materials Center, Korea Institute of Ceramic Engineering and Technology)
Sim, Young Jin (Convergence Transport Materials Center, Korea Institute of Ceramic Engineering and Technology)
Park, Dong Jin (GTI)
Cho, Kwang Youn (Convergence Transport Materials Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.32, no.3, 2022 , pp. 89-95 More about this Journal
Abstract
In this study, glassy carbon coating was performed on the graphite using a phenolic resin and a curing agent was mixed with ethylene glycol as an additive to form the uniform surface. The phenolic resin was dried and cured under the environments of hot air, then converted into a glassy carbon layer by pyrolysis at 500~1,500℃. FTIR, XRD, SEM analysis, and density/porosity/contact angle measurement were performed for characterization of glassy carbon. The pyrolysis temperature for high-quality glassy carbon was optimized to be about 1,000℃. As the content of the additive increased, the effect of reducing surface defects on the coated surface, reduction of porosity, increase of contact angle, and increase of density were investigated in this study. The method of forming a glassy carbon coating layer through an additive is expected to be applicable to graphite coating and other fields.
Keywords
Glassy carbon; Graphite coating; Phenol resin; Additive; Impregnation;
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