http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110364324-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-0018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01F1-015 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C1-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C22-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-00 |
| filingDate | 2019-06-19^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110364324-B |
| titleOfInvention | Mn-Fe-P-Si based magnetic refrigeration material with low thermal hysteresis and preparation method thereof |
| abstract | The invention discloses a low-thermal-hysteresis Mn-Fe-P-Si-based magnetic refrigeration material and a preparation method thereof, belonging to the technical field of magnetic refrigeration materials, wherein the material comprises (Mn, Fe) x 2‑ Nb x (P , Si) in the formula The method comprises the following steps: weighing manganese sheets, iron powder, niobium powder, phosphorus blocks and silicon blocks according to the molar ratio of each element in the chemical formula, and carrying out ball milling under the protection of argon; putting the ball-milled powder into a die and pressing into a wafer; and annealing the pressed sample under argon, and then quickly quenching the sample into cold water to obtain the sample. The invention passes through (Mn, Fe) 2 The (P, Si) material is doped with a proper amount of Nb, so that the phase change temperature is continuously adjustable near room temperature, the thermal hysteresis is greatly reduced, and simultaneously, the large magnetic entropy change is kept, thereby being beneficial to the application of the material in room temperature magnetic refrigeration. |
| priorityDate | 2019-06-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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