Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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Friction and wear properties of plasma-sprayed $Cr_2$$O_3$/$MoO_3$ composite coatings

$MoO_3$가 첨가된 $Cr_2$$O_3$ 플라스마 용사코팅의 마찰 마멸 특성

  • 여인웅 (한국과학기술연구원 트라이볼로지연구센터, 고려대학교 재료공학과) ;
  • 안효석 (한국과학기술연구원 트라이볼로지연구센터) ;
  • 임대순 (고려대학교 재료공학과)
  • Published : 2001.06.01
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Abstract

Plasma-sprayed coatings were prepared using by spray-dried Cr$_2$O$_3$ powder with and without MoO$_3$ addition. A reciprocal type tribe-tester was employed to examine friction and wear behavior of the specimens at room temperature. The worn surfaces of plasma spray coated specimens were observed by SEM. The results showed that friction coefficient of the MoO$_3$-added coatings were lower than those without MoO3 addition. However pure Cr$_2$O$_3$ coating showed the lowest wear loss at the self-mated test. The larger protecting layers were observed at the worn surface of plasma spray coated specimens with MoO$_3$ addition.

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