Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Application of Ni-P-PTFE Coatings for Preventing Fretting Corrosion

마찰부식 방지를 위한 Ni-P-PTFE 코팅의 적용

  • Hong, Jin-Won (Dep't of Electronic Materials Engineering, The University of Suwon) ;
  • Lee, Keun-Woo (Dep't of Advanced Materials Engineering, The Hanyang University) ;
  • Bae, Kyoo-Sik (Dep't of Electronic Materials Engineering, The University of Suwon)
  • 홍진원 (수원대학교 전자재료공학과) ;
  • 이근우 (한양대학교 신소재공학부) ;
  • 배규식 (수원대학교 전자재료공학과)
  • Published : 2006.07.27
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Abstract

Au/Ni coatings are widely used in the electrical interconnect system, such as connectors, sockets and wire crimps. But due to repeated mechanical contacts, fretting corrosion occurs and causes a rapid increase in resistance. As an attempt to resolve these problem, application of Ni-P-PTFE to replace Ni undercoats was proposed, for which basic materials properties of Ni-P-PTFE coatings for preventing fretting corrosion was examined in this study. The Ni-P-PTFE coatings were formed by electroless Ni plating and PTFE coating followed by the heat-treatment. PTFE particles were found to be uniformly distributed in the Ni-P matrix. The Ni-P-PTFE coatings showed the excellent anti-adherent property with the contact angle of $104.3^{\circ}$, microhardness of 144.3 Hv comparable to that of Ni-P, and electric conductivity equivalent to that of Ni-P.

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References

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