Thermal deposition of reactive metal oxide/aluminum layers and dispersion strengthened aluminides made therefrom
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United States of America Patent
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Dec 24, 2013
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Feb 14, 2008
app pub date -
Feb 14, 2007
filing date -
Feb 14, 2006
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Abstract
Metal aluminides are formed by an initial thermal deposition process which forms an intermediary material comprising elemental aluminum and another elemental metal, as well as an oxide of the other metal. The thermally formed intermediary material is subsequently heated to initiate an exothermic reaction which forms the metal aluminide material. The reaction may be initiated by localized or bulk heating of the intermediary material, and may involve reaction between the aluminum and elemental metal as well as a thermite reaction between the aluminum and the metal oxide. The resultant metal aluminide material may be substantially fully dense and may contain oxide strengthening precipitates such as aluminum oxide.
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