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

Patent ·
OSTI ID:870994
 [1]
  1. Maryville, TN
+ Show Author Affiliations

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.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5637816
OSTI ID:
870994
Country of Publication:
United States
Language:
English

References (9)

Identification of thermodynamically stable ceramic reinforcement materials for iron aluminide matrices journal January 1990
Microstructure and tensile properties of Fe-40 At. pct Al alloys with C, Zr, Hf, and B additions journal September 1989
The effect of molybdenum addition on properties of iron aluminides journal April 1989
Room temperature deformation behavior of multiphase Ni20at.%Al30at.%Fe and its constituent phases journal January 1991
Effect of chromium on room temperature ductility and fracture mode in Fe3Al journal October 1988
Effect of addition of molybdenum or niobium on creep-rupture properties of Fe 3 Al journal August 1992
Synthesis of iron aluminides from elemental powders: Reaction mechanisms and densification behavior journal February 1991
A review of recent developments in Fe 3 Al-based alloys journal August 1991
Amorphization of Intermetallic Compounds Dispersed in the Aluminum Matrix by Mechanical Alloying journal January 1992

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Related Subjects

/75/419/501/
1450
15
40
99
alumina
aluminide
aluminide powder
binder
carbide
ceramic
ceramic particle
ceramic particles
ceramic particulate
ceramic particulates
ceramics
composite
composite comprising
comprise
comprising
cooling
crucible
degree
diboride
evacuated
furnace
heating
iron
iron aluminide
matrix
matrix composite
metal
metal matrix
method
minutes
mixture
particles
particulate
particulate phase
particulates
percent
phase
powder
temperature
titanium
titanium carbide
titanium diboride
tungsten
tungsten carbide
volume
volume percent
zirconium
zirconium diboride