Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Characterization of Ti(C,N) Solid Solutions in Densified Ti(C,N) and TiC-TiN-Ni Cermet

치밀화된 Ti(C,N)과 TiC-TiN-Ni 써멧에서의 Ti(C,N) 고용상의 특성평가

  • Kim, Seong-Won (Advanced Engineering Ceramics Department, Korea Institute of Ceramic Engineering and Technology) ;
  • Chae, Jung-Min (Advanced Engineering Ceramics Department, Korea Institute of Ceramic Engineering and Technology) ;
  • Kang, Shin-Hoo (Department of Materials Science and Engineering, Seoul National University) ;
  • Ryu, Sung-Soo (Advanced Engineering Ceramics Department, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Hyung-Tae (Advanced Engineering Ceramics Department, Korea Institute of Ceramic Engineering and Technology)
  • Published : 2008.12.28
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Abstract

Ti(C,N) solid solutions in hot-pressed Ti($C_{x}N_{1-x}$) (x=0.0, 0.3, 0.5, 0.7, 1.0) and 40TiC-40TiN-20Ni (in wt.%) cermet were characterized in this study. For hot-pressed Ti(C,N)s, the lattice parameters and hardness values of Ti(C,N) were determined by using XRD (X-Ray Diffraction) and nanoindentation. The properties of hot-pressed Ti(C,N) samples changed linearly with their carbon or nitrogen contents. For the TiC-TiN-Ni cermet, the hardness of the hard phase and binder phase were determined by nanoindentation in conjunction with microstructural observation. The measured hardness values were ${\sim}8.7$ GPa for the binder phase and ${\sim}28.7$ GPa for the hard phase, which was close to the hardness of hot-pressed Ti($C_{0.7}N_{0.3}$).

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