Title:
耐摩耗性、耐熱性および基材との密着性に優れた積層皮膜の製造方法
Document Type and Number:
Japanese Patent JP4205546
Kind Code:
B2
Abstract:
A multilayered film of the present invention includes a hard film provided on a substrate and including a compound of essential metal components, Al and Ti, with C, N, B, or O, and an intermediate layer formed between the substrate and the hard film, the intermediate layer including at least one selected from the group consisting of a metal, an alloy, and a compound of the metal or the alloy, and having an oxidation temperature lower than that of the hard film. The multilayered film further includes an oxide-containing layer formed by oxidizing the hard film, and an alumina film formed on the surface of the oxide-containing layer. The multilayered film of the present invention has excellent adhesion to the substrate, excellent heat resistance, and excellent oxidation resistance when being exposed to a substrate temperature of 700° C. or more and an oxidizing atmosphere.
Inventors:
Toshimitsu Ohara
Hiroshi Tamagaki
Kenji Yamamoto
Hiroshi Tamagaki
Kenji Yamamoto
Application Number:
JP2003323582A
Publication Date:
January 07, 2009
Filing Date:
September 16, 2003
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B23B27/14; C23C14/06; B32B15/10; C23C8/02; C23C8/80; C23C14/08; C23C28/00; C23C30/00; C23C
Domestic Patent References:
| JP9323204A |
Attorney, Agent or Firm:
Kyuichi Ueki
Etsushi Kotani
Etsushi Kotani