http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114572942-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1dce5e0c7e404f892b9a20184d1615a4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-0682 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-068 |
| filingDate | 2020-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c83bed7cb627b838bd48867703b5d22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fdd41d6a0708a2e53d70f2043afc543e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9d0f7114ca4749731b80fff1ea324fb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b25a231239412fe155400da92feff16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6722c820a1504e527ec549d4f18a24c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e05ffcd0b2a0e5f8816128f852bd9af http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27290595464cd61e17fe0c4647322fb1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8c86489af5a46126648427421c34237 |
| publicationDate | 2022-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114572942-A |
| titleOfInvention | Multi-step nitridation process for mass production of α-phase silicon nitride and α-phase silicon nitride |
| abstract | The invention discloses a multi-step nitridation process for mass production of α-phase silicon nitride and α-phase silicon nitride. The process includes the following steps: 1) pre-sintering silicon powder in an atmosphere containing nitrogen, and partially silicon The powder undergoes nitridation reaction to obtain a calcined product; 2) the calcined product is crushed into agglomerated debris with a size of the order of millimeters and below; 3) the crushed calcined product is calcined under a nitrogen atmosphere containing, silicon dioxide The powder continues to undergo nitridation reaction to obtain α-phase silicon nitride. The present invention proposes a multi-step nitriding process for mass production of α-phase silicon nitride. On the one hand, the problem that the mixing of the diluent in the prior art is difficult to ensure uniformity is solved by generating the silicon nitride diluent in situ; By crushing the pre-fired product, a millimeter and sub-millimeter-scale silicon powder stacking pore network is constructed, which increases the size of the gas diffusion channel by more than two orders of magnitude, and improves the consistency of the reaction microenvironment. |
| priorityDate | 2020-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.