| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-597
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-593
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-584 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-597
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C30B29-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-626
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-082
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-593
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-80 |
| filingDate |
1987-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7683bbda5d4aefd8665417b16f0f80f7 |
| publicationDate |
1989-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0298084-A1 |
| titleOfInvention |
Method of forming a ceramic product |
| abstract |
A process for forming a dense ceramic product uses silicon nitride and silicon oxynitride or aluminum-substituted derivatives of either of these compounds, derivatives in which the silica is subjected to process for partial carbothermal reduction regulated in the presence of nitrogen in order to produce residual silicon and silicon nitride, said process consisting in giving the resulting material the desired shape and heating it in a nitrogen atmosphere to a temperature situated between 1400 ° C and 2000 ° C with or without pressure, to form the product. Silica can easily be obtained from pyrolyzed rice hulls. The product can also include silicon carbide which can be obtained by carbothermal reduction, as well as a glassy phase. |
| priorityDate |
1986-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |