Process for applying nitride layers to titanium

Details Process for applying nitride layers to titanium Process for applying nitride layers to titanium

1992-12-01

1994-03-08

Pianalto, Bernard

Coating processes

Coating by vapor, gas, or smoke

Base includes an inorganic compound containing silicon or...

4272554, 427295, 427399, C23C 1600

Patent

active

052925552

ABSTRACT:
An economical process for applying nitride layers to titanium and titanium alloys. Within a short time, layer thicknesses of 20 .mu.m are obtained by pressure-nitriding in an ammonia atmosphere. To this end, temperatures of 500.degree. to 1000.degree. C. and pressures of 0.2 to 9 MPa are used.

REFERENCES:
patent: 2779697 (1957-01-01), Chenault
patent: 4417927 (1983-11-01), Fullman
patent: 4793871 (1988-12-01), Dawes et al.
Patent Abstracts of Japan, vol. 5, No. 124 (C-66)(796) to Ogawa dated Aug. 11, 1981 (Method and Device for Nitrified-Layer Stabilizing Vapor).
Kirk-Othmer Encyclopedia of Chemical Technology, 3rd Ed. vol. 15 (1981) pp. 313-323.

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