Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified
Reexamination Certificate
2007-07-10
2007-07-10
Turner, Archene (Department: 1775)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Physical dimension specified
C427S402000, C427S419100, C427S419200, C427S419300, C427S419700, C427S532000, C428S472000, C428S698000, C428S701000, C428S702000, C428S704000
Reexamination Certificate
active
10933374
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.
REFERENCES:
patent: 5693417 (1997-12-01), Goedicke et al.
patent: 5879823 (1999-03-01), Prizzi et al.
patent: 6086953 (2000-07-01), Raghavan et al.
patent: 6156383 (2000-12-01), Ishii et al.
patent: 6187421 (2001-02-01), Moriguchi et al.
patent: 6210726 (2001-04-01), Schiller et al.
patent: 6254984 (2001-07-01), Iyori
patent: 2005/0058850 (2005-03-01), Kohara et al.
patent: 2005/0276990 (2005-12-01), Kohara et al.
patent: 2002-53946 (2002-02-01), None
patent: 2000-0069901 (2000-11-01), None
U.S. Appl. No. 10/554,601, filed Oct. 27, 2005, Tamagaki et al.
U.S. Appl. No. 10/551,993, filed Oct. 4, 2005, Tamagaki et al.
U.S. Appl. No. 11/174,551, filed Jul. 6, 2005, Kohara et al.
Tsutomu Ikeda, et al., “Phase Formation and Characterization of Hard Coatings in the Ti-Al-N System Prepared by the Cathodic Arc Ion Plating Method”, Metallurgical and Protective Layers, Thin Solid Films, 195, 1991, pp. 99-110.
Kohara Toshimitsu
Tamagaki Hiroshi
Yamamoto Kenji
(Kobe Steel, Ltd.)
Turner Archene
LandOfFree
Multilayered film having excellent wear resistance, heat... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multilayered film having excellent wear resistance, heat..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multilayered film having excellent wear resistance, heat... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3723788