High hardness, wear resistant materials

Details High hardness, wear resistant materials High hardness, wear resistant materials

1990-10-09

1992-02-18

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 96, 423440, C04B 3556

Patent

active

050894471

ABSTRACT:
A powdered admixture of a metal and its boron, carbon, nitrogen or silicon derivative is, when subjected to densification conditions, partially reacted and converted to a hard, wear resistant material. Such a material, when formed from an admixture of tungsten carbide and tungsten, contains tungsten monocarbide and (di-tungsten) carbide. Other choices of metal and metal derivatives produce at least one compound having a stoichiometry which differs from that of starting metal derivative. Articles formed from this material can be useful as, for example, nozzles in abrasive or nonabrasive waterjet cutting machines and various parts of wire drawing apparatus.

REFERENCES:
patent: 3451791 (1969-06-01), Meadows
patent: 3488291 (1970-01-01), Hardy et al.
patent: 3660050 (1972-05-01), Iler et al.
patent: 3886254 (1975-05-01), Tanaka et al.
patent: 4066821 (1978-01-01), Cook et al.
patent: 4124665 (1978-11-01), Petersen et al.
patent: 4828584 (1989-05-01), Cutler
patent: 4891338 (1990-01-01), Gesing et al.
patent: 4945073 (1990-07-01), Dubensky et al.

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