대한의용생체공학회:학술대회논문집 (Proceedings of the KOSOMBE Conference)

대한의용생체공학회 (The Korean Society of Medical and Biological Engineering)
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Interfacial bonding Energy between Laser Surface Treated HA layer and Ti alloy

  • 문덕수 (인제대학교 의용공학과) ;
  • 김영곤 (인제대학교 의용공학과) ;
  • 남상용 (인제대학교 의용공학과) ;
  • 조현설 (인제대학교 의용공학과) ;
  • 허은정 (인제대학교 의용공학과) ;
  • 김석영 (영남대학교 금속재료공학과) ;
  • 이준희 (동아대학교 금속공학과)
  • Moon, D.S. (Dept. of Biomedical Engineering Inje Univ.) ;
  • Kim, Y.K. (Dept. of Biomedical Engineering Inje Univ.) ;
  • Nam, S.Y. (Dept. of Biomedical Engineering Inje Univ.) ;
  • Cho, H.S. (Dept. of Biomedical Engineering Inje Univ.) ;
  • Huh, E.J. (Dept. of Biomedical Engineering Inje Univ.) ;
  • Kim, S.Y. (Dept. of Materials Science Yeungnam Univ.) ;
  • Lee, J.H. (Dept. of Metallurgical Engineering Dong-A Univ.)
  • 발행 : 1997.05.23
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초록

The interfacial bonding energy between laser surface treated HA layer and Ti alloy substrate was investigated using a mechanical push-out tester. The initial slope of shear-stress and reduced displacement curves, maximum interfacial bond strength and bonding energy were calculated from results of the push-out test. The calculated initial slpoes are 38 MPa for the Ti alloy(A), 65 MPa for the sandblast finished specimen(B), 95 MPa for the HA plasma spray coated specimen and 49 MPa for the laser surface treated specimen(D). The maximum interfacial bonding strength are 3 MPa for the A, 19 MPa for the B, 20 MPa for the C, 10 MPa for the D. The interfacial bonding energies are $3.3\times10^{-9}J/mm^2$ for the A, $15.5\times10^{-9}J/mm^2$ for the B, $15.6\times10^{-9}J/mm^2$ for the C and $18.3\times10^{-9}J/mm^2$ for the D. Microscopic observation shows that the breaking of the laser treated specimen had been occured through the boundary between HA layer and polymer resin, but the untreated specimen had been occured through the inside of HA coating layer.

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