Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Multi-layer Coating for Improvement Anti-wear Property of Graphite

흑연의 내마모성 증진을 위한 다층 코팅

  • Suh, Im-Choon (Department of Electronic Materials Engineering Korea Advanced Insititute of Science and Technology) ;
  • Kim, Dong-Il (Department of Electronic Materials Engineering Korea Advanced Insititute of Science and Technology) ;
  • Yeh, Byung-Hahn (Agency of Defence Developmnet) ;
  • Jung, Bahl (Agency of Defence Developmnet) ;
  • Park, Chong-Ook (Department of Electronic Materials Engineering Korea Advanced Insititute of Science and Technology)
  • 서임춘 (한국과학기술원 전자재료공학과) ;
  • 김동일 (한국과학기술원 전자재료공학과) ;
  • 예병한 (국방과학연구소) ;
  • 정발 (국방과학연구소) ;
  • 박종욱 (한국과학기술원 전자재료공학과)
  • Published : 1994.08.01
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Abstract

To increase the anti-oxidation and anti-wear properties of graphite for the propellant-burning environment, SiC, Pt and Al2O3 multi-layer coatings were conducted succesisvely and the optimum condition was researched. The SiC layer was produced by pack cementation and SiC layer in thickness of 30 ${\mu}{\textrm}{m}$ coating was produced after coating for 6 hours. Pt layer was coated by sputtering, and the Al2O3 layer was coated by reactive sputtering. the thickness of Pt layer and Al2O3 layer was less than one-tenth of that of SiC layer. The pack coated specimens and multi-layer coated specimens were made using above conditions and test-fired. The test result showed that the wear rate of SiC layer is approximately 1/10 compared to that of uncoated graphite.

Keywords

References

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