Pd-Ag-In-Au계 금속-세라믹 합금의 모의소성에 따른 경도 및 미세구조의 변화
Change in Hardness and Microstructure During Porcelain Firing Simulation in a Pd-Ag-In-Au Metal-Ceramic Alloy
표애리, 신혜정, 조수연, 권용훈, 김형일, 설효정,
소속 상세정보
표애리 ( Pyo Ae-Ri ) - 부산대학교 치의학전문대학원 치과재료학교실
신혜정 ( Shin Hye-Jung ) - 부산대학교 치의학전문대학원 치과재료학교실
조수연 ( Cho Su-Yoen ) - 부산대학교 치의학전문대학원 치과재료학교실
권용훈 ( Kwon Yong-Hoon ) - 부산대학교 치의학전문대학원 치과재료학교실
김형일 ( Kim Hyung-Il ) - 부산대학교 치의학전문대학원 치과재료학교실
설효정 ( Seol Hyo-Joung ) - 부산대학교 치의학전문대학원 치과재료학교실
KMID : 1035320160430020167
Abstract
Change in hardness and microstructure during porcelain firing simulation in a Pd-Ag-In-Au metal-ceramic alloy was examined by observing the change in hardness, crystal structure and microstructure. In the as-cast specimen, the matrix was composed of the Pd3Ga phase(f.c.t.), and the particle-like structures were composed of the Pd-Ag-based phase(f.c.c.). The precipitates which covered the particle-like structures were composed of the Pd3In phase(f.c.t.). Specimen which was cooled by ice quenching after oxidation was softened due to homogenization of the microstructure, and then it was hardened due to precipitation during the simulated firing stages. The decrease in hardness by subsequent firing schedule was resulted from reduction of precipitates in the particle-like structures.
키워드
Pd-Ag-In-Au alloy; firing simulation; precipitation hardening; cooling rate; microstructure
원문 및 링크아웃 정보
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