Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1985-05-02
1988-05-24
Kittle, John E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
428217, 428627, 428698, 428701, 428702, 4289088, 428932, 51309, 4272552, 4272557, B32B 702, B32B 900, B24D 302, C23C 1600
Patent
active
047465638
ABSTRACT:
Multilayer coated cemented carbides excellent in wear resistance and toughness are provided comprising a substrate of cemented carbide, an inner layer contacted with the surface of the substrate, and an outer layer contacted with the inner layer, the inner layer being a single layer and/or laminated layers consisting of at least one member selected from the group consisting of carbides, nitrides, carbonitrides, carboxynitrides, oxynitrides, boronitrides and borocarbonitrides of Ti, and the outer layer being a multilayer with a total thickness of 5 to 20 .mu.m, consisting of a plurality of Al.sub.2 O.sub.3 layer each having a thickness of 0.01 to 2 .mu.m, each consisting of an Al.sub.2 O.sub.3 film in which titanium oxide is dissolved or at most 30 vol % of titanium oxide is coexistent and being respectively divided by interlayers each having a thickness of 0.01 to 2 .mu.m and each consisting of at least one member of the group consisting of TiC, TiN, TiCN, TiCNO, TiNO, Ti oxides Ti(B, N), Ti(B, N, C), SiC, AlN and AlON.
REFERENCES:
patent: 4010583 (1977-03-01), Highberg
patent: 4052530 (1977-10-01), Fonzi
patent: 4284687 (1981-08-01), Dreyer
patent: 4357382 (1982-11-01), Lambert et al.
patent: 4490191 (1984-12-01), Hale
English Translation of Japanese Patent Publication 53-45607 (Apr. 24, 1978), 14 p., 1 drawing figure.
Patent Abstracts of Japan, vol. 6, No. 214 (C-131) [1092] Oct. 27, 1982.
Patent Abstracts of Japan, vol. 6 No. 214 (C-134) [1105] Nov. 12, 1982.
Patent Abstracts of Japan, vol. 1, No. 157 p. 3370 C Dec. 14,1977.
Nakano Minoru
Tobioka Masa-aki
Kittle John E.
Rucker Susan S.
Sumitomo Electric Industries Ltd.
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