대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제35권4호
  • /
  • Pages.353-358
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  • 2013
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
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금속-도재관용 Ni-Cr합금의 조성변화와 소성단계에 따른 전단결합강도

Observation of Shear Bonding Strength by Compositional Change and Firing Steps of the Ni-Cr Alloy for Porcelain Fused Metal Crown

  • 조용완 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 홍민호 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 김원영 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 최성민 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 정인성 (부산가톨릭대학교 보건과학대학 치기공학과)
  • 투고 : 2013.11.04
  • 심사 : 2013.12.23
  • 발행 : 2013.12.30
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초록

Purpose: This study was observation shear bonding strength by compositional change and firing step of a Ni-Cr alloy for porcelain fused metal crown. The aim of study was to suggest the material for firing step of Ni71-Cr14 alloy to development of alloy for porcelain fused to metal crown. Methods: The test was on the two kinds of Ni-Cr alloy specimens. The surfaces of two alloys were analyzed by EDX in order to observe oxide characteristic. And the shear test was performed by MTS. Results: The surface property and oxide characteristic analysis of oxide layer, weight percentage of Element O within $Ni_{71}Cr_{14}$ alloy measured 23.32wt%, and $Ni_{59}Cr_{24}$ alloy was measured 23.03wt%. And the maximum shear bonding strength was measured 58.02MPa between $Ni_{59}Cr_{24}$ alloy and vintage halo(H4 group). Conclusion: The surface property and oxide characteristic three kind of Ni-Cr alloy was similar. and shear bonding strength showed the highest bonding strength in H4 specimens.

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참고문헌

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