http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111848168-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-5445 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6562 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-5626 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-62605 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-645 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-645 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-626 |
| filingDate | 2020-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111848168-B |
| titleOfInvention | Method for preparing WC-Y2O3 binderless hard alloy by in-situ reaction hot-pressing sintering |
| abstract | The invention relates to the technical field of preparation of cemented carbide without binding phase, in particular to a method for preparing WC-Y by in-situ reaction hot-pressing sintering 2 O 3 A method for preparing cemented carbide without binding phase. The invention utilizes a coprecipitation method to prepare WC-Y 2 (C 2 O 4 ) 3 ·10H 2 O mixing the powder so that Y 2 (C 2 O 4 ) 3 ·10H 2 The O is uniformly distributed in the mixed powder; then carrying out in-situ reaction hot-pressing sintering, namely WC-Y 2 (C 2 O 4 ) 3 ·10H 2 Y in O-mixed powder 2 (C 2 O 4 ) 3 ·10H 2 Increase of O with sintering temperatureHigh gradual dehydration decomposition, and the dehydrated vapor generates a liquid film layer on the surface of WC powder under the action of pressure, thereby promoting the dissolution and precipitation of the local area of the WC powder and accelerating the WC-Y 2 O 3 The densification process of the cemented carbide without binding phase further reduces the sintering temperature and improves the WC-Y 2 O 3 The compactness and the comprehensive mechanical property of the cemented carbide without binding phase. |
| priorityDate | 2020-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.