도재소부용 금속구조물의 강화방법
Strengthening method of a porcelain fusedAu-Pt-Cu-0.5In alloy
이상혁, 도정만, 정호년,
소속 상세정보
이상혁 ( Lee Sang-Hyeok ) - 한국과학기술연구원 금속연구부
도정만 ( Doh Jung-Mann ) - 한국과학기술연구원 금속연구부
정호년 ( Jung Ho-Yeon ) - 식품의약품안전청 의료기기평가부
KMID : 0362120030250010063
Abstract
The microstructure and hardness of a porcelain fused Au-Pt-Cu-In alloy was investigated usingoptical microscopy, secondary electron microscopy, electron probe microanalyzer, transmissionelectron microscope, and vickers hardness. The hardness of the heat-treated Au-Pt-Cu-Inquartenary alloy reached a maximum value in 30 min at 550in the range of 150 to 950. In theaged Au-Pt-Cu-0.5In alloy at 550, the hardness of the alloy rapidly increased until 30min withincreasing aging time and after that it was remained nearly constant value. Based on above results, glazing and final aging of the porcelain fused Au-Pt-Cu-0.5In alloy wereperformed at 920 and 550, respectively. The hardness of Au-Pt-Cu-0.5In alloy glazed at 920was 90 Hvand that of the alloy aged for 30 min at 550increased to 160 Hv. This indicates that aceramic-metal crown with high strength can be manufactured using the glazing at 920andfollowed final aging at 550for 30 min.
키워드
Au-Pt-Cu-0.5 In alloy;ceramic-metal crown;glazing;aging;high strength
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