http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107726662-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02B30-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25B21-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C18-1254 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25B21-00 |
| filingDate | 2017-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107726662-B |
| titleOfInvention | Room-temperature solid-state electric card refrigeration method |
| abstract | The invention discloses a method for refrigerating a room-temperature solid-state electric card. Preparation of Bi 5 Ti 3 FeO 15 /BiFeO 3 Ferroelectric thin film, then adding Bi 5 Ti 3 FeO 15 /BiFeO 3 The ferroelectric film is in the working area of negative charge-trapping effect, and the Bi is in adiabatic state after the electric field is applied 5 Ti 3 FeO 15 /BiFeO 3 Ferroelectric thin film, maintaining system entropy balance, lowering temperature of the thin film, Bi 5 Ti 3 FeO 15 /BiFeO 3 After the ferroelectric film is heated, the ferroelectric film is switched to a working region with positive charge-trapping effect from negative charge-trapping effect, and Bi is added under the condition of applying an electric field 5 Ti 3 FeO 15 /BiFeO 3 The entropy of the ferroelectric film is increased, the temperature is raised under the adiabatic condition, at the moment, an external electric field is removed, the electric dipole is recovered to be disordered, the entropy is reduced, and heat is absorbed from a refrigerated load in the isothermal environment to realize refrigeration. The invention achieves an efficient refrigeration effect. |
| priorityDate | 2017-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.