Dispersion strengthened materials.

摘要

A dispersion strengthened material comprising a metal matrix M and a plurality of ultra-fine particles of a refractory boride XBy substantially homogeneously dispersed in the metal matrix, where X is a metal which reacts with boron and y is an integer, the boride being within a range of about 0.05% to about 10% by weight of the material. In order to make the material, a first material comprising the matrix M and the metal X is supplied as a slurry to a mixing region(14) at a first velocity, a second material comprising the matrix M and boron is supplied as a slurry to the mixing region (14) at a second velocity, and the first and second materials impinge on each other at selected temperatures to produce a reaction between the metal X and the boron. The mixture is cooled, solidified and pulverized to a powder.