Layered film made of ultrafine particles and a hard composite ma

Details Layered film made of ultrafine particles and a hard composite ma Layered film made of ultrafine particles and a hard composite ma

1995-09-18

1997-12-23

Turner, Archene

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428216, 428336, 428698, 428701, 428702, 428704, 51307, 51309, 4274191, 4274192, 4274197, C23C 1406, B23B 2700

Patent

active

057005516

ABSTRACT:
Ultrafine particle-layered film for coating cutting tools. The film has more than two layers of at least two compounds consisting mainly of carbide, nitride, carbonitride or oxide of at least one element selected from a group consisting of IVa group elements, Va group elements, VIa group elements, Al, Si and B, and that each layer is made of ultrafine particles. Ultrafine particle-layered film improves hardness, strength, wear-resistance and heat-resistance of the tools.

REFERENCES:
patent: 4268569 (1981-05-01), Hale
patent: 4334928 (1982-06-01), Hara et al.
patent: 4562163 (1985-12-01), Endo et al.
patent: 4835062 (1989-05-01), Holleck
patent: 4984940 (1991-01-01), Bryant et al.
Database WPI, Section Ch, Week 8407, "Disposable Hard Tool Tip Multiple Hard Coating Forming Carbide Nitricarbo Nitride Group-IVA Group-VA Group-VIA Element Top Coat Alumina", AN 84-039561, Toshiba Tungallow KK, (Jan. 6, 1984).
Database WPI, Section CH, Week 8337, "Sinter High Speed Machining Tool Contain Molybdenum", Derwent Publications Ltd., AN 83-760769, Nachi Fujikoshi Corp., (Jul. 28, 1983).
Patent Abstracts of Japan, vol. 010, No. 208, (C-361), Jul. 22, 1986, "Tool Coated With Multilayered Hard Film", Japanese 61-048568, Mar. 10, 1986.

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