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Title: Metal matrix composite of an iron aluminide and ceramic particles and method thereof

A metal matrix composite comprising an iron aluminide binder phase and a ceramic particulate phase such as titanium diboride, zirconium diboride, titanium carbide and tungsten carbide is made by heating a mixture of iron aluminide powder and particulates of one of the ceramics such as titanium diboride, zirconium diboride, titanium carbide and tungsten carbide in a alumina crucible at about 1450.degree. C. for about 15 minutes in an evacuated furnace and cooling the mixture to room temperature. The ceramic particulates comprise greater than 40 volume percent to about 99 volume percent of the metal matrix composite.
Inventors:
 [1]
  1. (Maryville, TN)
Issue Date:
OSTI Identifier:
870994
Assignee:
Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5637816
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
metal; matrix; composite; iron; aluminide; ceramic; particles; method; comprising; binder; phase; particulate; titanium; diboride; zirconium; carbide; tungsten; heating; mixture; powder; particulates; ceramics; alumina; crucible; 1450; degree; 15; minutes; evacuated; furnace; cooling; temperature; comprise; 40; volume; percent; 99; tungsten carbide; titanium diboride; particulate phase; titanium carbide; metal matrix; ceramic particles; volume percent; iron aluminide; composite comprising; ceramic particle; matrix composite; ceramic particulates; zirconium diboride; ceramic particulate; aluminide powder; /75/419/501/