Bonding and hardness in nonhydrogenated carbon films with moderate sp(3) content

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Amorphous carbon films with an s p{sup 3} content up to 25% and a negligible amount of hydrogen have been grown by evaporation of graphite and concurrent Ar{sup +} ion bombardment. The s p{sup 3} content is maximized for Ar{sup +} energies between 200 and 300 eV following a subplantation mechanism. Higher ion energies deteriorate the film due to sputtering and heating processes. The hardness of the films increases in the optimal assisting range from 8 to 18 GPa, and is explained by the crosslinking of graphitic planes through s p {sup 3} connecting site.

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7 p.

Creation Information

GAGO,R.; JIMENEZ,I.; ALBELLA,J.M.; CLIMENT-FONT,A.; CACERES,D.; VERGARA,I. et al. April 17, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Amorphous carbon films with an s p{sup 3} content up to 25% and a negligible amount of hydrogen have been grown by evaporation of graphite and concurrent Ar{sup +} ion bombardment. The s p{sup 3} content is maximized for Ar{sup +} energies between 200 and 300 eV following a subplantation mechanism. Higher ion energies deteriorate the film due to sputtering and heating processes. The hardness of the films increases in the optimal assisting range from 8 to 18 GPa, and is explained by the crosslinking of graphitic planes through s p {sup 3} connecting site.

Physical Description

7 p.

Notes

OSTI as DE00754320

Medium: P; Size: 7 pages

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  • Journal Name: Journal of Applied Physics; Other Information: Submitted to Journal of Applied Physics

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  • Report No.: SAND2000-0940J
  • Report No.: 0000035115-000
  • Grant Number: AC04-94AL85000
  • DOI: 10.1063/1.373514 | External Link
  • Office of Scientific & Technical Information Report Number: 754320
  • Archival Resource Key: ark:/67531/metadc703841

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  • April 17, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 11, 2017, 3:08 p.m.

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GAGO,R.; JIMENEZ,I.; ALBELLA,J.M.; CLIMENT-FONT,A.; CACERES,D.; VERGARA,I. et al. Bonding and hardness in nonhydrogenated carbon films with moderate sp(3) content, article, April 17, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc703841/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.