Submicron carbonitride powders and their use

Details Submicron carbonitride powders and their use Submicron carbonitride powders and their use

1993-04-30

1995-12-19

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75242, 501 87, 501 96, 423371, 423364, C22C 2904

Patent

active

054765307

ABSTRACT:
This invention relates to submicron carbonitride powders of titanium and, optionally, other transition metals of the fifth (Me.sup.(5)) and sixth (Me.sup.(6)) secondary group of the periodic system of elements which have the following general molar composition: (Ti.sub.L Me.sub.M.sup.(5) Me.sup.(6).sub.1-L-M) (C.sub.1-y N.sub.y).sub.z with 0.50.ltoreq.L.ltoreq.1; 0.ltoreq.m.ltoreq.0.15; 0.ltoreq.(1-L-M).ltoreq.0.50; 0.10.ltoreq.y.ltoreq.0.95 and z.gtoreq.0.90, to a process for the production of these powders and to their use.

REFERENCES:
patent: 3904736 (1975-09-01), Triggiani
patent: 3994692 (1976-11-01), Rudy
patent: 4049876 (1977-09-01), Yamamoto et al.
patent: 4145213 (1979-03-01), Oskarsson et al.
patent: 4333915 (1982-06-01), Iwai et al.
patent: 5147831 (1992-09-01), Zeiringer
patent: 5314656 (1994-05-01), Munir
Carbothermal Reduction and Nitriding of TiO.sub.2, Journal of the European Ceramic Society 5 (1989) 257-265, Essex, GB.
ASTM Designation: B330-88, pp. 128-131 Standard Test Method for Average Particle Size of Powders of Refractory Metals and Their Compounds by the Fisher Sub-Sieve Sizer.
HCST DIN 66 131 (Oct. 1973), pp. 1-7 (No translation).

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