| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8eaf0e75177d288022d3cbabcc3ceada |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3217
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-524 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-645 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-645 |
| filingDate |
2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f140f5d78477814703832d9b9caf0baf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d0eabe8b9e8e4f61cd90441f8fa1177
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4c985007f22e1b8f7109b83b573b741
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce6d7f6930a27bc5fa8724362730467d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf3a6e1913c730b29ba5669642db6e2c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cb1e62ebdcc1af1f7a6362dd64f8825
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9ec1dc5c57d7187cbdeb491db29bde0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ff2b83205d12f6951550911a45a5b7a |
| publicationDate |
2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-113149677-A |
| titleOfInvention |
A kind of silicon nitride-based ceramics toughened by nickel wire with wood-like annual ring structure and its preparation method and application |
| abstract |
The invention discloses a silicon nitride-based ceramic toughened by a nickel wire of a wood-like annual ring structure, and a preparation method and application thereof. The silicon nitride-based ceramic is internally provided with a nickel wire during sintering; the nickel wire has a coil spring structure. It specifically includes the following steps: Step 1 , taking 90wt% to 91wt % of Si3N4 powder, 9wt % to 10wt% of Al2O3 and Y2O3 powder in proportion by mass, mixing uniformly and drying to obtain composite powder ; and take 5% to 10% of the nickel wire of the coil spring structure relative to the mass of the composite powder; step 2, fix the nickel wire of the coil spring structure in the mold, add the composite powder obtained in step 1 for pre-pressing; step 3 , sintering the pre-pressed composite powder and nickel wire under the protection of nitrogen atmosphere. Nickel wire toughened silicon nitride ceramic composites. The material properties of silicon nitride-based ceramics are improved through the design of bionic structures to avoid brittle fracture of silicon nitride-based ceramics. |
| priorityDate |
2021-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |