High hardness, wear resistant materials

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

1991-12-13

1993-06-01

Brunsman, David

Compositions: ceramic

Ceramic compositions

Refractory

501 87, 501 96, 501 98, 501 93, 423 61, 423 62, 423 71, 423290, 423291, 423297, 423344, 423371, 423409, 423411, 423440, 423138, C04B 3556, C04B 3558

Patent

active

052159450

ABSTRACT:
A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal is combined with a source of a second metal and, optionally, a source of a third metal or an iron-group metal, subjected to densification conditions (heat and pressure), partially reacted and converted to a hard, wear resistant material. The wear resistant material contains an amount of the first metal derivative as well as a material of varying stoichiometry which is the partial reaction product of components of the powdered admixture The material may also contain residual, unreacted portions of components other than the first 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.

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