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US 10,329,509 B2Granted
Amorphous hydrocarbon based film, and sliding member and sliding system with said film
AssigneesJtekt Corporation, The University of Tokyo
InventorsTakahisa Kato, Masataka Nosaka, Mamoru Tohyama, Atsushi Murase, Kyoko Nakai, Masahiro Suzuki
Life of this patent
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Abstract
A low-friction coating includes: an aliphatic hydrocarbon group showing a peak in a region of 2,900 cm−1 to 3000 cm−1 in an infrared absorption spectrum; a carbonyl group showing a peak in a region of 1,650 cm−1 to 1,800 cm−1 in an infrared absorption spectrum; an aromatic component (C7H7+) showing a peak at mass 91.1 in a positive ion spectrum obtained by TOF-SIMS; and a condensed ring based component (C9H7+) showing a peak at mass 115.2 in the positive ion spectrum obtained by TOF-SIMS.
Claims8
A sliding member comprising:
- a sliding surface comprising a first coating,
- wherein the sliding member is formed of at least one of metal and ceramics, and
- wherein the first coating comprises an amorphous hydrocarbon based film, the amorphous hydrocarbon based film comprising:
- an aliphatic hydrocarbon group showing a peak in a region of from 2,900 cm−1 to 3,000 cm−1 in an infrared absorption spectrum;
- and
- at least one of an aromatic component showing a peak at a mass of 91.1 in a positive ion spectrum obtained by time-of-flight secondary ion mass spectrometry and a condensed ring based component showing a peak at a mass of 115.2 in the positive ion spectrum obtained by the time-of-flight secondary ion mass spectrometry.
3 more elements
Dependencies are inferred from the claim text.