| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1a34d7d2e0d09a58cb7bf4a04c81162e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-616
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6581
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-608
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-614
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-612
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-5268 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16D69-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-83 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-55 |
| filingDate |
2008-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2011-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20e0b2009f332cc986de5dc97b902f86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5757df7f07be99f932556193c28fab2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5d688a0027b5744a5dbb9f2d363aa6a |
| publicationDate |
2011-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-7927523-B2 |
| titleOfInvention |
Densification of C-C composites with pitches followed by CVI/CVD |
| abstract |
Method of manufacturing pitch-based carbon-carbon composite useful as a brake disc, by: (a) providing annular carbon fiber brake disc preform; (b) heat-treating the carbon fiber preform; (c) infiltrating the carbon fiber preform with pitch feedstock by VPI or RTM processing; (d) carbonizing the pitch-infiltrated carbon fiber preform; (e) repeating steps (c) and (d) to achieve a density in the carbon fiber preform of approximately 1.5 g/cc to below 1.7 g/cc; and (f) densifying the preform by CVI/CVD processing to a density higher than 1.7 g/cc. Employing lower cost VPI and/or RTM processing in early pitch densification cycles and using more expensive CVI/CVD processing only in the last densification cycle provides C-C composites in which the pitch-based components resist pullout, resulting in a longer wearing composite. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8268208-B2 |
| priorityDate |
2008-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |