Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study on the Synthesis of Titanium Nitride by SHS(Self-propagating High-temperature Synthesis) Method

자체반응열 고온합성법에 의한 질화티타늄 합성에 관한 연구

  • Ha, Ho (Department of Chenical Engineering, College of Engineering, Inha University) ;
  • Kim, Kwang-Rae (Department of Chenical Engineering, College of Engineering, Inha University) ;
  • Lee, Hee-Cheol (Department of Chenical Engineering, College of Engineering, Inha University)
  • 하호 (인하대학교 공과대학 화학공학과) ;
  • 김광래 (인하대학교 공과대학 화학공학과) ;
  • 이희철 (인하대학교 공과대학 화학공학과)
  • Published : 1993.12.01
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Abstract

Titanium nitride was synthesized by reacting Ti powder with nitrogen gas using SHS method. In this process, the effects of nitrogen pressure, dilution with TiN, or additiion of titanium hydride(TiH1.924) on the conversion of Ti to TiN were investigated. In particular, much effects were given to solve the problem of the conversion drop due to partial melting and subsequent sintering of Ti parciels, by controlling combustion temperature and combustion wave velocity via mixing Ti powder with TiN or/and TiH1.924. For the diluted titanium powders with TiN, the conversion close to 100% was resulted when the nitrogen pressure was over 8atm and with diluent content of 60wt%, and the self-propagating reaction was not sustained when the diluent content was higher than 60wt%. For samples mixed to be 55wt% in Ti component in the mixture of Ti, TiH1.924, and 45% TiN, the conversion was closed to 100% when the amount of titanium hydride added was over 7wt% and the nitrogen pressure was higher than 5atm. The combustion reaction, however, was not sustained when titanium hydride added was more than 10wt%.

Keywords

References

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