Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Synthesis of (Ti,Al)N Powder by Interdiffusion Nitriding Method

상호확산법에 의한 (Ti,Al)N계 복합질화물의 합성

  • Lee, Young-Ki (Dept. of Electronic Materials Engineering, Ui-Duk University) ;
  • Kim, Jung-Yeul (Dept. of Electronic Materials Engineering, Ui-Duk University) ;
  • Kim, Dong-Kun (Dept. of Metallurgical Engineering, Chon-Buk University) ;
  • Sohn, Yong-Un (Korea Institute of Geology, Mining & Materials)
  • 이영기 (위덕대학교 공과대학 전자재료공학과) ;
  • 김정열 (위덕대학교 공과대학 전자재료공학과) ;
  • 김동건 (전북대학교 공과대학 금속공학과) ;
  • 손용운 (한국자원연구소 자원활용소재연구부)
  • Published : 1997.06.30
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Abstract

TiN and AlN are ceramic materials with extensive applications due to its excellent mechanical and chemical properties at elevated temperature. The purpose of this research is to develop the method for the synthesis of ternary nitride powder, titanium-aluminum-nitrogen system, which have an excellent property of both TiN and AlN. The ternary nitride such as $Ti_3AlN$, $Ti_2AlN$ and $Ti_3Al_2N_2$ can be synthesized by the interdiffusion nitriding method in Ar gas, however, the ternary nitride coexist with TiN, AlN, $Ti_3Al$ and ${\alpha}$-Ti. The ternary nitride are stable below $1400^{\circ}C$, but these are gradually decomposed into TiN, $Ti_3Al$ and AlN above $1400^{\circ}C$. The thermal oxidation characteristics of the Ti-Al-N compound synthesized by the interdiffusion nitriding method is superior to that of the TiN+AlN mixed powder, and the oxidation for both materials show the differential behaviors.

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