http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7803732-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ce69cc2ac7da31cb65c308e8c49c198f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3839 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3246 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3834 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3865 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-575 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F41H5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-577 |
| filingDate | 2006-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42491b1ed8a6647380fd8ee1c04ec2ba http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_908300b2e068dc60ebf942eb96964f0c |
| publicationDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7803732-B1 |
| titleOfInvention | Compositions for improved ceramic armor |
| abstract | The present invention contemplates the addition of zirconium compounds to well known ceramic ballistic materials to increase resistance to penetration by projectiles. In the preferred embodiments of the present invention, the zirconium compound that is employed consists of ZrO 2 and is provided in the range of about 0.1% to about 11%, by weight, of starting material before densification. Preferred ranges of proportion of ZrO 2 in the finished ceramic material are in the ranges of about 0.30% to about 0.75%, by weight, or about 8-9%, by weight. The ballistic material using the combination of SiC with low volume of sintering aid and ZrO 2 raises the theoretical density of the ceramic material to between 3.225 and 3.40 g/cc, which is slightly higher than the typical 3.22 g/cc theoretical density for hot pressed fully dense SiC. The unexpected result that accrues through combining silicon carbide and zirconia consists of the creation of controlled defects in the finished ceramic that increase the surface area that is fractured during a ballistic event, enhancing spreading of the forces imposed on the ceramic material by a projectile and, as a result, the ability of the ballistic material to withstand higher forces while resisting penetration. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9052166-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9540283-B2 |
| priorityDate | 2006-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.