| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3224
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P10-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3229
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3227
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6026
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-658
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6562
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-661
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3826 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-591
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-591
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-64 |
| filingDate |
2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113548903-B |
| titleOfInvention |
A kind of silicon carbide reinforced silicon nitride ceramics and preparation method thereof |
| abstract |
The invention discloses a silicon carbide reinforced silicon nitride ceramic and a preparation method thereof, and relates to the technical field of ceramic materials. In the preparation method of the present invention, silicon powder is subjected to surface oxidation treatment by heating, so that a layer of SiO2 layer with relatively low absorbance and refractive index is formed on the surface of silicon powder, and the introduced oxygen content is removed by carbothermal reduction, simultaneously forming Silicon carbide phase reinforced silicon nitride ceramics. The silicon nitride ceramic prepared by using silicon powder as a raw material through a reaction sintering method in the present invention has the characteristics of low shrinkage and deformation, and can realize the preparation of complex-shaped silicon carbide reinforced silicon nitride ceramics in combination with light-curing molding technology. |
| priorityDate |
2021-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |