도재용착주조관용 Ni-Cr계 합금의 조성에 따른 표면특성 및 전단결합강도 관찰
The Surface Property and Shear Bonding Strength according to Composition of Ni-Cr alloy for Porcelain Fused to Metal Crown
김갑진, 정인성, 최성민,
소속 상세정보
김갑진 ( Kim Kap-Jin ) - 부산가톨릭대학교 보건과학대학 치기공학과
정인성 ( Chung In-Sung ) - 부산가톨릭대학교 보건과학대학 치기공학과
최성민 ( Choi Sung-Min ) - 부산가톨릭대학교 보건과학대학 치기공학과
KMID : 0362120130350020113
Abstract
Purpose: This study was to observe surface property and bonding strength according to composition of Ni-Cr alloy for porcelain fused to metal crown. The two kinds of Ni-Cr alloy with different composition ratio of parent metal were observed general properties and chemical properties of each alloy surface and measured the shear bonding strength between ceramic and each alloys. The aim of study was to suggest the material for design of parent metal’s composition ratio to development of alloy for porcelain fused to metal crown.
Methods: The two kinds of alloy as test specimen was Ni(71wt.%)-Cr(12wt.%) and Ni(63wt.%)-Cr(23wt.%) alloy. The oxide on surface was observed by SEM and EDX. 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 Ni71Cr12 alloy measured 12.74wt.%, but Ni63Cr23 alloy was measured 15.91wt.%. And the maximum shear bonding strength was measured 106.14 MPa between Ni71Cr12 alloy and vintage halo (VV group).
Conclusion:The surface property and oxide characteristic of Ni71Cr12 alloy was similar to Ni63Cr23 alloy. And VV group has the strongest shear bonding strength.
키워드
Ni-Cr alloy;surface property;Oxide characteristic;Shear bonding strength
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