Aluminum oxide coated titanium-containing cemented carbide produ

Details Aluminum oxide coated titanium-containing cemented carbide produ Aluminum oxide coated titanium-containing cemented carbide produ

1984-04-09

1986-03-18

Massie, Jerome

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

4272481, 427255, 428698, 428926, 428932, B32B 904

Patent

active

RE0320935

ABSTRACT:
A high-strength, coated cemented carbide product comprising a cemented carbide substrate and a fully dense alpha aluminum oxide coating on the substrate. The coating has a thickness of from 1-20 microns and is firmly and adherently bonded to the cemented carbide substrate through a thin intermediate nonmetallic layer [of an iron group metal aluminate]. The coated product combines a wear resistance substantially as high as aluminum oxide cutting materials and a transverse rupture strength of at least 150,000 p.s.i. The coated product is prepared by passing water vapor, hydrogen gas and an aluminum halide over the substate at a temperature of from 900.degree.-1250.degree. C., the ratio of water vapor to hydrogen gas being between about 0.025 and 2.0.

REFERENCES:
patent: 3110571 (1963-11-01), Alexander et al.
patent: 3261673 (1966-03-01), Wheildon
patent: 3564683 (1971-02-01), Schedler et al.
patent: 3565643 (1971-02-01), Bergna
patent: 3732655 (1973-08-01), Ramquist
patent: 3736107 (1973-05-01), Hale
patent: 3837836 (1974-09-01), Lindstrom et al.
patent: 3914473 (1975-10-01), Hale
patent: 3967035 (1976-06-01), Hale
patent: 3977061 (1976-08-01), Lindstrom et al.
patent: 4018631 (1977-04-01), Hale
patent: 4019873 (1977-04-01), Reiter
patent: 4046517 (1977-09-01), Soga
patent: 4052530 (1977-10-01), Fonzi
Campbell et al, "Vapor-Phase . . . Materials", J. of the Electrochemical Society, vol. 96, No. 5, (Jun. 1949) pp. 318-333.
Hinterman, "Laminate . . . Tools", Swedish Patent Application, filed May 28, 1970, Ser. No. 7379.

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