US2018045260A1PendingUtilityA1

System and Method for Ceramic Doping of Carbon Fiber Composite Structures

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Assignee: GOODRICH CORPPriority: Oct 29, 2014Filed: Oct 23, 2017Published: Feb 15, 2018
Est. expiryOct 29, 2034(~8.3 yrs left)· nominal 20-yr term from priority
Inventors:Paul Perea
C04B 2235/614F16D 2250/0053C04B 2235/606C04B 2235/5248C04B 2235/3217F16D 65/126F16D 69/023C04B 2235/616F16D 65/127C04B 35/76C04B 35/83F16D 2200/0052C23C 16/56F16D 2200/0082C23C 16/26
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Claims

Abstract

A system and method for ceramic doping of carbon fiber materials is disclosed. A carbon fiber preform may be made of carbonized oxidized PAN fibers and may be placed in contact with a nanoparticle suspension having nanoparticles and a dispersion medium. The nanoparticles may impregnate the carbon fiber preform, causing it to become a doped carbon fiber preform. The doped carbon fiber preform may be densified. The doped carbon fiber preform may be densified by conventional CVI processing techniques. The doped carbon fiber preform may be densified by thermal gradient CVI.

Claims

exact text as granted — not AI-modified
1 . A doped carbon fiber preform comprising:
 a carbon fiber preform comprising carbonized oxidized PAN fibers; and   nanoparticles impregnated into the carbonized oxidized PAN fibers.   
     
     
         2 . The doped carbon fiber preform according to  claim 1 , wherein the nanoparticles comprise aluminum oxide. 
     
     
         3 . The doped carbon fiber preform according to  claim 2 , wherein the doped carbon fiber preform comprises an aircraft brake disc.

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