http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109133896-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3284 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3213 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3208 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225 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/C04B35-2633 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-26 |
| filingDate | 2018-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109133896-B |
| titleOfInvention | Permanent magnetic ferrite material and preparation method thereof |
| abstract | The invention belongs to the technical field of ferrite. The invention discloses a permanent magnetic ferrite material with the chemical formula of Sr 1‑ x Ca x Fe 12‑y‑z Y y Zn z O 19 Wherein x is more than or equal to 0 and less than or equal to 0.2, y is more than or equal to 0.1 and less than or equal to 0.2, and z is more than or equal to 0 and less than or equal to 0.1; the invention also discloses a preparation method of the permanent magnetic ferrite material, which comprises the steps of material preparation, primary ball milling, pre-sintering, secondary ball milling, molding, sintering, post-treatment and the like. According to the invention, calcium oxide, yttrium oxide and zinc oxide are jointly added to the existing strontium ferrite, so that the strontium ferrite has an ion substitution effect, and the magnetic performance of the Co-free permanent magnetic ferrite is improved. |
| priorityDate | 2018-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.