METHOD OF FABRICATING A FRICTION PART BASED ON C/C COMPOSITE MATERIAL
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United States of America Patent
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Issued Date -
Dec 19, 2013
app pub date -
Nov 10, 2011
filing date -
Nov 10, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A fiber preform made of carbon fibers is densified with a carbon matrix in a plurality of separate stages. After a first densification stage and before the end of carbon matrix densification, ceramic particles are introduced in order to be dispersed within the composite material part. The introduced particles have a mean size of less than 250 nm and are made at least of a ceramic compound of an element selected from titanium, yttrium, tantalum, and hafnium, the ceramic compound being selected from oxides, nitrides, and mixed oxide, carbide, and/or nitride compounds that do not react with carbon at a temperature of less than 1000° C. and that have a melting point higher than 1800° C.
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- C04B Class
- 13.04 % this patent is cited more than
- 12 Age