Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Tribological Characteristics of Dental Metal Alloys

치과 보철용 금속 합금의 마찰 마멸 특성

  • Kim, J.H. (Dept. of Bio Industrial Mechanical Engineering, Pusan National University) ;
  • Choi, W.S. (Dept. of Bio Industrial Mechanical Engineering, Pusan National University)
  • 김종훈 (부산대학교 바이오산업기계공학과) ;
  • 최원식 (부산대학교 바이오산업기계공학과)
  • Received : 2013.04.30
  • Accepted : 2013.06.11
  • Published : 2013.08.30
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Abstract

The tribological characteristics of dental metal alloys and zirconia were studied by carrying out a friction and wear performance test. In this study, a pin-on-disk-type tester was used and dead weight was employed as the normal load applied to the test specimen. The friction coefficient of dental metal alloys was investigated in terms of their weight and sliding velocity. Microscopic observations were carried out on worn surfaces of specimens. The results indicated that among all metal alloys, Super-A had the highest friction coefficient. Super-A had the lowest amount of wear among all metal alloys, and the amount of wear increased in the following order: Crown & Bridge, Porcelain, and Partial. Crown & Bridge had the best friction coefficient, but the hardness of Crown & Bridge was lower than that of Porcelain and Partial. Experimental measurement results indicated that the disk weight before and after the experiment was the same.

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References

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