Journal of Mechanical Science and Technology

  • 제16권9호
  • /
  • Pages.1065-1071
  • /
  • 2002
  • /
  • 1738-494X(pISSN)
  • /
  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Tribological Characteristics of Magnetron Sputtered MoS$_2$ films in Various Atmospheric Conditions

  • Kim, Seock-Sam (Department of Mechanical Engineering, Kyungpook National University) ;
  • Ahn, Chan-Wook (Graduate School, Department of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Tae-Hyung (Graduate School, Department of Mechanical Engineering, Kyungpook National University)
  • 발행 : 2002.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The friction and wear behaviors of magnetron sputtered MoS$_2$ films were investigated through the use of a pin and disk type tester. The experiments were performed for two kinds of specimens (ground (Ra 0.5 $\mu\textrm{m}$) and polished (Ra 0.01 $\mu\textrm{m}$) substrates) under the following operating condifions : linear sliding velocities in the range of 22～66 mm/s (3 types), normal loads varying from 9.8～29.4 N(3 types) and atmospheric conditions of air, medium and high vacuum (3types). Silicon nitride pin was used as the lower specimen and magnetron sputtered MoS$_2$ on bearing steel disk was used as the upper specimen. The results showed that low friction property of the MoS$_2$ films could be identified in high vacuum and the specific wear rate in air was much higher than that in medium and high vacuum due to severe oxidation. It was found that the main wear mechanism in air was oxidation whereas in high vacuum accumulation of plastic flow and adhesion, were the main causes of wear.

키워드

참고문헌

  1. Fusaro, R. L., 1995, 'Lubrication of Space Systems.' J. of the Society of Tribologists and Lubircation Engineers, Vol. 51, No. 3, pp. 182-194
  2. Kato, K., Furuyama, H. and Mizumoto, M., 1990, 'The Fundamental Properties of Tribo-Coating Films in Ultra High Vacuum,' Proc. of Japan International Tribology Conference. Nagoya, pp. 261-266
  3. Miyoshi, K., 1999, 'Considerations in Vacuum Tribology(Adhesion, Friction, Wear and Solid Lubrication in Vacuum),' Tribology International, Vol. 32, pp. 605-616 https://doi.org/10.1016/S0301-679X(99)00093-6
  4. Roberts, E. W., 1990, 'Thin Solid Lubricant Films in Space,' Tribology International, Vol. 23, No. 2, pp. 95-104 https://doi.org/10.1016/0301-679X(90)90042-N
  5. Roberts, E. W., 1989, 'Ultra Low Friction Films of $MoS_2$ for Space Applications,' Thin Solid Films, Vol. 181, pp. 461-473 https://doi.org/10.1016/0040-6090(89)90515-4
  6. Suzuki, M., 1998, 'Comparison of Tribological Characteristics of Sputtered $MoS_2$ Films Coated With Different Apparatus,' Wear, Vol. 218, pp. 110-118 https://doi.org/10.1016/S0043-1648(98)00143-4
  7. Voevodin, A. A., O'Neill, J. P. and Zabinski, J. S., 1999, 'Nanocomposite Tribological Coatings for Aerospace Applications,' Surface and Coatings Technology, Vol. 116-119, pp. 36-45 https://doi.org/10.1016/S0257-8972(99)00228-5