http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110880391-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-015 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C1-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C30-00 |
| filingDate | 2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110880391-B |
| titleOfInvention | Ferromanganese-based magnetic refrigeration material with low thermal hysteresis and preparation method and application thereof |
| abstract | The invention belongs to the technical field of refrigeration, and discloses a ferromanganese-based magnetic refrigeration material with low thermal hysteresis, a preparation method and application thereof, wherein the ferromanganese-based magnetic refrigeration material with low thermal hysteresis is prepared by sintering hard magnetic powder and mixed powder containing manganese and iron; the hard magnetic powder is composed of one or more of neodymium iron boron, samarium cobalt and samarium iron nitrogen hard magnets; the molar ratio of the mixed powder meets the chemical general formula Mn x Fe y‑x P a Si b Wherein, the range of x is: x is more than or equal to 0.9 and less than or equal to 1.3; the range of y is: y is more than or equal to 1.9 and less than or equal to 2; the range of a is: a is more than or equal to 0.15 and less than or equal to 0.75; a. b satisfies the condition a + b is 1. According to the invention, the hard magnetic powder is added into the mixed material containing manganese and iron to prepare the block material with low thermal hysteresis and high density, the addition of the hard magnetic powder effectively changes the phase change temperature and thermal hysteresis of the magnetic refrigeration material, and the block material with low thermal hysteresis, large magnetic thermal effect and high density is prepared, so that the block material is beneficial to being applied to the technical field of room temperature magnetic refrigeration. |
| priorityDate | 2019-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.