http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109748276-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B28D1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-26 |
| filingDate | 2019-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109748276-B |
| titleOfInvention | Diamond core nano polycrystalline material, preparation method thereof and superhard cutter |
| abstract | The invention provides a diamond core nano polycrystalline material, a preparation method thereof and a superhard cutter, and belongs to the technical field of superhard materials. The diamond core nano polycrystalline material comprises an inner core and an outer shell, wherein the inner core comprises nano diamond, and the outer shell comprises B-C-N solid solution. The preparation method of the diamond core nano polycrystalline material comprises the following steps: filling nano-diamond powder or nano-carbon powder containing partial nano-diamond powder into a boron nitride nanotube under an ultrasonic condition through wet mixing to obtain a filling body, treating the filling body under a vacuum condition, and prepressing and forming to obtain a blank; and sintering the blank to perform solid solution strengthening to obtain the diamond core nano polycrystalline material. The diamond core nano polycrystalline material can solve the technical problems of low hardness of cubic boron nitride and cutting graphitization of diamond in the prior art, simultaneously improves the thermal stability and hardness, enhances the wear resistance, and can be used for preparing superhard cutters. |
| priorityDate | 2019-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.