Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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High-Temperature Oxidation Behavior of TiN-Ti5Si3 Ceramic Composites Manufactured by Polymer Pyrolysis

고분자 열분해 방법으로 제조된 TiN-Ti5Si3 세라믹 복합체의 고온 산화 거동

  • Kim, Beom-Seob (School of Materials Science and Engineering, Sungkyunkwan University) ;
  • Kim, Deug-Joong (School of Materials Science and Engineering, Sungkyunkwan University) ;
  • Lee, Dong-Bok (School of Materials Science and Engineering, Sungkyunkwan University)
  • 김범섭 (성균관대학교 신소재공학부) ;
  • 김득중 (성균관대학교 신소재공학부) ;
  • 이동복 (성균관대학교 신소재공학부)
  • Published : 2006.08.01
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Abstract

A new $TiN-Ti_5Si_3$ bulk composite was synthesized from preceramic, inorganic polymer (methylpolysilsesquioxane) and $TiH_2$ filler powders via polymer pyrolysis. Using this process, ceramics with high melting points can be produced relatively easily to a near net shape. The $TiN-Ti_5Si_3$ composite oxidized slowly during heating to $1000^{\circ}C$. During heating at the temperatures of at 700 and $800^{\circ}C$, TiN oxidized to Rutile-$TiO_2$ whereas $Ti_5Si_3$ resisted to oxidation. The oxide scale formed consisted primarily of $TiO_2$ containing $Ti_5Si_3$.

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References

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