Process for preparation of nano ceramic-metal matrix composites and apparatus thereof
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United States of America Patent
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Sep 24, 2013
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Dec 29, 2011
app pub date -
Jul 29, 2008
filing date -
Jul 29, 2008
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Abstract
A method to introduce ceramic particles into liquid metal through the polymeric precursor route by cross-linking organic precursor into a hard polymer, which is added to the liquid melt for in-situ pyrolysis of the organic into the ceramic phase. The starting material, the organic, for the above process can be in the form of a liquid or a solid. If it is a solid it is usually dissolved into a solvent to create a liquid form. The organic is then cross linked either directly by a thermal process, by adding a catalyst, or by the well known sol-gel process into a hard polymer. It is this hard polymer which is then pyrolyzed into a high temperature ceramic material by the process outlined above.
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