VERFAHREN ZUR FORMUNG VON METALL-KERAMIK-VERBUNDWERKSTOFFEN.

摘要

Uniform dispersion of ceramic phase(s) and/or intermetallic phase(s) in metal matrix is obtd. by in situ pptn. where reactive constits. for dispersed phase are contacted in nonreactive solvent metal wherein constits. are more soluble than prod.; mixt. is heated to temp. to give diffusion and initiate exothermic reaction to raise temp. above m.pt. of matrix and form distribution of particles. For composite contg. 2 solvent metals, initial heating is to m.pt. of lower melting metal such that exothermic heat raises temp. above m.pt. of higher melting metal which is then matrix of compsn.