한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)

  • 제28권5호
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  • Pages.206-210
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  • 2018
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
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Ti6Al4V 합금에 두 종류의 생체활성화 유리 코팅

Coating of two kinds of bioactive glass on Ti6Al4V alloy

  • 강은태 (경상대학교 나노.신소재공학부) ;
  • 이남영 (경상대학교 나노.신소재공학부) ;
  • 최현빈 (한국알루미나(주) 연구개발팀)
  • Kang, Eun-Tae (School of Nano & Advanced Materials Engineering, Gyeongsang National University) ;
  • Lee, Nam-Young (School of Nano & Advanced Materials Engineering, Gyeongsang National University) ;
  • Choi, Hyun-Bin (Research & Development Team, Korea Alumina Co., Ltd.)
  • 투고 : 2018.08.13
  • 심사 : 2018.09.05
  • 발행 : 2018.10.31
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초록

에나멜 기법을 활용하여 Ti6Al4V 합금에 두 종류의 생체활성화 유리를 코팅하였다. 재료간의 열팽창계수 차이에 의한 열응력을 줄이기 위해 재료간의 열팽창계수의 차가 $2{\times}10^{-6}/^{\circ}C$ 정도 되도록 생체활성화 유리 조성을 선정하였다. 열팽창계수의 차이에도 불구하고 Ti6Al4V 합금과 코팅 유리간에 확산결합에 의해 양호한 부착이 형성되었음을 FE-SEM과 EDS 분석으로 확인하였다. 의사체액에 담근 후 코팅 표면에 일반적인 생체활성화 유리와 같은 hydroxycarbonate apatite가 형성됨을 FT-IR로부터 확인하였다.

Two kinds of bioactive glass were coated on the Ti6Al4V alloy by the enameling technique. In order to reduce the thermal stress due to the difference in expansion coefficient with the alloy with the secondary coating forming hydroxyapatite, the difference in expansion coefficient between the alloy and the two glasses was adjusted at $2{\times}10^{-6}/^{\circ}C$ intervals. FE-SEM and EDS analysis showed that good adhesion was formed between the Ti6Al4V alloy and the primary coating by diffusion bonding. After immersion in SBF solution, it was confirmed from FT-IR that hydroxycarbonate apatite formed in the secondary coating was not different from bulk bioactive glass.

키워드

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