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Structure and mechanical properties of hydrogenated carbon films prepared by magnetron sputtering

Journal Article · · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)
DOI:https://doi.org/10.1109/20.278773· OSTI ID:5160806
; ;  [1];  [2]
  1. Seagate Magnetics, Fremont, CA (US)
  2. Lawrence Berkeley Lab., CA (United States). Center for Advanced Materials
This paper reports on hydrogenated thin carbon films which have been prepared by DC-magnetron sputtering in an hydrogen-containing Argon atmosphere. A monotonic decrease in friction buildup as well as an increase in abrasion resistance is observed for increasing hydrogen proportion in Argon, from 0 to 5%. At the same time, Raman data shows higher sp{sup 3} character and an increase in hydrogen content in the film, as monitored with FTIR, is observed. Resistivity measurements also show a transition from conductor to insulator. For very high hydrogen content, the film becomes increasingly softer. These data are attributed to an initial increase in the sp{sup 3}/sp{sup 2} bonding ratio, followed by a loss of three-dimensional cross-linking eventually leading to polymerization.
DOE Contract Number:
AC03-76SF00098
OSTI ID:
5160806
Journal Information:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:6; ISSN IEMGA; ISSN 0018-9464
Country of Publication:
United States
Language:
English