Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Effects of TiN/Ti Multilayer Coating on the Ti-30Ta-xZr Alloy Surface

Ti-30Ta-xZr 합금의 표면에 TiN/Ti 다층막코팅효과

  • Kim, Y.U. (Department of Dental Science, Chonnam National University) ;
  • Jeong, Y.H. (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, School of Dentistry, Chosun University) ;
  • Cho, J.Y. (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, School of Dentistry, Chosun University) ;
  • Choe, H.C. (Department of Dental Materials & Research Center of Nano-Interface Activation for Biomaterials, School of Dentistry, Chosun University) ;
  • Vang, M.S. (Department of Dental Science, Chonnam National University)
  • 김영운 (전남대학교 치의학전문대학원 보철과) ;
  • 정용훈 (조선대학교 치과대학 치과재료학교실) ;
  • 조주영 (조선대학교 치과대학 치과재료학교실) ;
  • 최한철 (조선대학교 치과대학 치과재료학교실) ;
  • 방몽숙 (전남대학교 치의학전문대학원 보철과)
  • Published : 2009.08.31
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Abstract

Effects of TiN/Ti multilayer coating on the Ti-30Ta-xZr alloy surface were studied by using various experiments. The Ti-30Ta containing Zr (5, 10 and 15 wt%) were melted 10 times to improve chemical homogeneity by using a vacuum furnace. And then samples were homogenized for 24 hrs at $1000^{\circ}C$. The specimens were prepared for TiN/Ti coating by cutting and polishing. The prepared specimens were coated with TiN/Ti multilayers by using DC magnetron sputtering method. The analyses of coated surface and coated layer were carried out by field emission scanning electron microscope(FE-SEM), EDX, and X-ray diffractometer(XRD). From the microstructure and XRD analysis of Ti-30Ta-xZr alloys, The equiaxed structure was changed to needle-like structure with increasing Zr content. And $\alpha$-peak and elastic modulus increased as Zr content increased. The $\alpha$ and $\beta$ phase predominantly were found in the specimen containing high Zr content. According to the analysis of TiN/Ti coating layer, the surface defects and structures of Ti-30Ta-xZr were covered with TiN/Ti coating layer and surface roughness decreased.

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