http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109087766-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-0551 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C1-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22F1-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22F1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-055 |
| filingDate | 2018-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109087766-B |
| titleOfInvention | Permanent magnet alloy and preparation method thereof |
| abstract | The invention provides a permanent magnet alloy and a preparation method thereof, and relates to the technical field of permanent magnet materials. The nominal molecular formula of the permanent magnet alloy is (Mn) 0.5+x Al 0.5‑x ) 100‑y RE y Wherein x is more than or equal to 0.01 and less than or equal to 0.09, y is more than or equal to 0.1 and less than or equal to 1.0, and RE is one or more of rare earth elements. The invention also provides a preparation method of the permanent magnet alloy, a large amount of dispersed nano precipitated phases are introduced into the tau-phase matrix by adding trace rare earth elements into the MnAl alloy and combining a melt rapid quenching technology and a surfactant-assisted ball milling method, and the tau-phase matrix is used as a pinning center to effectively block magnetic domain movement, so that the coercive force is obviously improved. Meanwhile, compared with MnAl permanent magnet alloy, the permanent magnet alloy does not sacrifice saturation magnetization, and has strong tau phase stability and high Curie temperature. In addition, the preparation method has the advantages of simple process, good process repeatability, good stability and the like. |
| priorityDate | 2018-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.