치과주조용 금-은-팔라듐합금의 물리적 특성에 관한 연구
김철위,
소속 상세정보
김철위 ( Kim Cheol-We ) - 서울대학교 치과대학 치과생체재료과학교실
KMID : 0362719820200121073
Abstract
The purpose of this study was to measure and compare the tensile strengths, elongation and Vicker’s hardness values by heat treatments of three·commercial dental casting gold-silver-palladium alloys(Type A,B and G-50 alloys) used in Korea. Instron universal testing instrument and Vicker’s hardness tester were used to determine their physical properties. The following results were obtained with the alloys tested. 1. It was determined that the tensile strengths generally tended to increase as the hardened condition (55.50 - 72.98 Kg/mm₂)than in softened condition (28.75 - 41.16 Kg/mm₂). 2. The results indicated that the elongation was the highest in the softened condition(12.30 - 27.0 %), and was the smallest in the hardened condition (3.6 - 5.8 %). 3. It was found that the Vicker’s hardness number was the greatest in type G-50 hardened alloys (304.0), and the smallest in the type A softened alloys (130.0).
키워드
원문 및 링크아웃 정보
등재저널 정보