Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Tarnish Behavior of Palladium-Indium-Silver alloy

Pd-In-Ag 합금의 변색거동에 관한 연구

  • Kim, Hwa-Soo (Metallurgical Engineering, Hanyang University) ;
  • Kim, Seong-Yun (Devision of Metals. Korea Institute of Science and Technology) ;
  • Lee, Kyu-Hwan (Devision of Metals. Korea Institute of Science and Technology) ;
  • Shin, Myung-Chul (Devision of Metals. Korea Institute of Science and Technology) ;
  • Dzo, Man Hyung (Metallurgical Engineering, Hanyang University)
  • 김화수 (한양대학교 금속공학과) ;
  • 김성윤 (한국과학기술연구원 금속부) ;
  • 이규환 (한국과학기술연구원 금속부) ;
  • 신명철 (한국과학기술연구원 금속부) ;
  • 조만형 (한양대학교 금속공학과)
  • Received : 1997.09.22
  • Published : 1998.04.01
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Abstract

The purpose of this study was to give a quantitative analysis for assessing the tarnish resistance of alloys at the artificial saliva, 0.9% NaCI solution and Ringer's solution. In light of development in low-nobility alloys, it is important that tarnish test is standardized to analyse the tarnish properties of the compositions. There are concerns with the long term chemical stability of these alloys and the resistance to tarnish. Chemical stability is a complex problem involving alloy composition, nobility, microstructure and environment.

치과재료로서 금합금을 대체하기 위하여 Pd-In-Ag 합금을 설계해서 인공체액과 0.9% Nacl용액 링거용액에서 변색실험을 행하였다. 인공체액과 0.9% Nacl 용액에서는 은의 함량증가에 대하여 높은 변색을 보였으나 링거용액에서는 은의 함량 증가에 따른 변색 영향이 관찰되지 않았다. 합금개발을 위하여 Pd와 In, Ag의 변색 영향을 조사하였고 새로운 합금의 설계가 시도되었다.

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