Metal article and method for producing the same
First Claim
1. A compacted multiphase composite article comprising diamonds and multiphase composite particles, said multiphase composite particles consisting of a metal matrix, having therein a volume fraction greater than about 0.15 of substantially uniform and homogeneous distribution of hard phase non-metallic compound particles that are no larger than about 0.1 micron.
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Abstract
A compacted, single phase or multiphase composite article. Particles for use in the compacted article are produced by providing a precursor compound containing at least one or at least two metals and a coordinating ligand. The compound is heated to remove the coordinating ligand therefrom and increase the surface area thereof. It may then be reacted so that at least one metal forms a metal-containing compound. The particles may be consolidated to form a compacted article, and for this purpose may be used in combination with graphite or diamonds. The metal-containing compound may be a nonmetallic compound including carbides, nitrides and carbonitrides of a refractory metal, such as tungsten. The metal-containing compound may be dispersed in a metal matrix, such as iron, nickel or cobalt. The dispersed nonmetallic compound particles are no larger than about 0.1 micron in particle size and have a volume fraction greater than about 0.15 within the metal matrix.
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Citations
10 Claims
- 1. A compacted multiphase composite article comprising diamonds and multiphase composite particles, said multiphase composite particles consisting of a metal matrix, having therein a volume fraction greater than about 0.15 of substantially uniform and homogeneous distribution of hard phase non-metallic compound particles that are no larger than about 0.1 micron.
- 6. A compacted, multiphase composite article comprising multiphase composite particles consisting of a metal matrix having therein a volume fraction greater than about 0.15 of substantially uniform and homogeneous distribution of non-metallic compound particles no larger than about 0.1 micron.
Specification