Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study of the Pack Cemented SiC Coating on Graphite by Experimental Design

흑연의 내산화성 증진을 위한 실험 계획법에 따른 탄화규소 코팅에 관한 연구

  • 서임춘 (한국과학기술원 전자재료공학과) ;
  • 리원준 (한국과학기술원 전자재료공학과) ;
  • 예병한 (국방과학연구소) ;
  • 박종욱 (한국과학기술원 전자재료공학과)
  • Published : 1992.10.01
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Abstract

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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References

  1. Coatings of High Temperature Materials Coatings on Graphite G.V. Samsanov;E.P. Epik;H. Hausner(ed.)
  2. Special Ceramics Refractory Coatings on Graphite J. Chown;R.F. Deacon;N. Singer;A.E.S. White;P. Popper(ed.)
  3. Metallic and Ceramic Coatings M.G. Hocking;V. Vasantasree;P.S. Sidky
  4. Quality Engineering Using Robust Design M.S. Phadke
  5. Carbon v.22 no.6 The Effects of Boron Additives on the Oxidation Behavior of Carbons D.W. McKee;C. Spiro;E. Lamby
  6. Carbon v.27 no.3 The Effects of Acid Treatments on Subsequent Reactivity of Carbon-Carbon Composite E.J. Hippo;N. Murdie;W. Kowbel