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Title: Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions

A metallic melt is atomized using a high pressure atomizing gas wherein the temperature of the melt and the composition of the atomizing gas are selected such that the gas and melt react in the atomization spray zone to form a refractory or intermetallic compound in the as-atomized powder particles. A metallic melt is also atomized using a high pressure atomizing gas mixture gas wherein the temperature of the melt and the ratio of a reactive gas to a carrier gas are selected to form powder particles comprising a supersaturated solid solution of the atomic species of the reactive gas in the particles. The powder particles are then heat treated to precipitate dispersoids in-situ therein to form a dispersion strengthened material. 9 figures.
Inventors:
; ;
Issue Date:
OSTI Identifier:
6883845
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (United States) PTO; EDB-95-029126
Patent Number(s):
US 5368657; A
Application Number:
PPN: US 8-048138
Contract Number:
W-7405-ENG-82
Resource Relation:
Patent File Date: 13 Apr 1993
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; INTERMETALLIC COMPOUNDS; SYNTHESIS; REFRACTORY METALS; ATOMIZATION; LIQUID METALS; ALLOYS; ELEMENTS; FLUIDS; LIQUIDS; METALS 360101* -- Metals & Alloys-- Preparation & Fabrication