Title:
硬質皮膜被覆材
Document Type and Number:
Japanese Patent JP4699978
Kind Code:
B2
Abstract:
A hard film and a hard film-coated material having better wear resistance and sliding performance (due to lower friction coefficients) than conventional surface coating layers, wherein the hard film includes at least one covering layer A and at least one covering layer B stacked one over the other, both having a thickness of 5 to 100 nm. The covering layer has a composition represented by the formula M(BaCbN1−a−b), where M denotes one or more elements selected from W, V, Mo, and Nb, and a and b denote the atomic ratio of B and C, respectively, as defined below. 0≰a≰0.3 . . . (1A), and 0≰b≰0.5 . . . (2A). Covering layer B has a composition represented by the formula Ti1−x−yCrxAlySiz(C1−ANA) where x, y, z, and A denote the atomic ratio of Cr, Al, Si, and N, respectively, as defined below. 0≰1−x−y≰0.5 . . . (1B), 0≰x≰0.5 . . . (2B), 0.4≰y≰0.7 . . . (3B), 0≰z≰0.15 . . . (4B), and 0.5≰A≰1 . . . (5B).
Inventors:
Kenji Yamamoto
Application Number:
JP2006299268A
Publication Date:
June 15, 2011
Filing Date:
November 02, 2006
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C23C14/06; C10M103/06; C10M169/00; C10N10/06; C10N10/08; C10N10/10; C10N10/12; C10N30/06; C10N40/24; C10N50/08
Domestic Patent References:
| JP2005256081A | ||||
| JP10237628A | ||||
| JP2005213637A | ||||
| JP2005279811A | ||||
| JP6041720A |
Attorney, Agent or Firm:
Yoshiyuki Kaji
Makoto Suhara
Takenaka Yoshimichi
Makoto Suhara
Takenaka Yoshimichi