Method for fabricating high purity, high density metal matrix composite materials and the product thereof
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United States of America Patent
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Mar 6, 2007
Grant Date -
Jun 2, 2005
app pub date -
Oct 8, 2004
filing date -
Sep 9, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of production of large Ingots of neutron attenuating composites using a vacuum-bellows system allows for large cross-sectional shapes to be extruded and rolled. This method uses a vacuum-bellows technology which allows the manufacturing of large 8 16 inch diameter ingots (50 450 lbs. each). A variety of primary metal matrix materials can be used in this technology. High specific strength and stiffness can be achieved because the technology allows for final densities of 99% and higher. The vacuum-bellows technology allows metals and ceramics to blend and mesh together at compression pressures of 800 tons with elevated temperatures. The controlled compression movement allows for any oxide layer, on the metal, to be broken up and consolidated with the chosen ceramic particulate.
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