Vacuum arc deposited DLC based coatings

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The great interest in the use of diamond-like carbon (DLC) films as a coating material is justified by the superior wear resistance and hardness, chemical inertness, and very low friction coefficients of these coatings. Vacuum arc deposition is well suited to prepare superhard films with high sp{sup 3}/sp{sup 2} ratios. However, the high level of internal stresses originating during growth prevents the deposition of thick films, and their hardness makes it difficult for DLC layers to comply with substrate deformations. In order to overcome these limitations, different approaches are possible. Multilayer structures are one means to maintain the surface mechanical ... continued below

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7 pages

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Monteiro, Othon R. & Delplancke-Ogletree, Marie-Paule May 1, 2002.

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Description

The great interest in the use of diamond-like carbon (DLC) films as a coating material is justified by the superior wear resistance and hardness, chemical inertness, and very low friction coefficients of these coatings. Vacuum arc deposition is well suited to prepare superhard films with high sp{sup 3}/sp{sup 2} ratios. However, the high level of internal stresses originating during growth prevents the deposition of thick films, and their hardness makes it difficult for DLC layers to comply with substrate deformations. In order to overcome these limitations, different approaches are possible. Multilayer structures are one means to maintain the surface mechanical properties of the DLC while relieving the internal stresses. Another possibility is to dope the DLC films in order to reduce the internal stress and to stabilize the desirable sp{sup 3} bonds to higher temperatures. At higher doses of dopants, the formation of nanocrystals is possible and the properties of the coatings change drastically. All these approaches were investigated on films prepared by cathodic arc and a synthesis of the results is presented here.

Physical Description

7 pages

Notes

OSTI as DE00809313

Source

  • Emerging Applications of Vacuum-Arc-Produced Plasma, Ion and Electron Beams, Ulan-Ude (RU), 06/24/2002--06/27/2002

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  • Report No.: LBNL--52251
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 809313
  • Archival Resource Key: ark:/67531/metadc740619

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • May 1, 2002

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 4, 2016, 3:53 p.m.

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Monteiro, Othon R. & Delplancke-Ogletree, Marie-Paule. Vacuum arc deposited DLC based coatings, article, May 1, 2002; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc740619/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.