http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109180185-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-661 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6565 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6562 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3201 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-62645 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B41-5116 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-6261 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B41-88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-626 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-64 |
| filingDate | 2018-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109180185-B |
| titleOfInvention | A method for preparing high energy storage potassium sodium niobate ferroelectric ceramic material in ultra-short time |
| abstract | The invention discloses a method for preparing potassium sodium niobate ferroelectric ceramic material with high energy storage in an ultra-short time. In the method, polyvinylpyrrolidone K30 or stearic acid is added as a dispersant in the process of high-energy ball milling, which greatly improves the The ball milling efficiency can obtain sub-micron powder in a short time. At the same time, the cold isostatic pressing method is used to increase the density of the ceramic sheet, and it is prepared into a fine-grained, high-density, high-breakdown field strength and high-energy-storage product. (K 0.5 Na 0.5 )NbO 3 ceramics. The preparation method of the invention significantly shortens the preparation time of ceramics, greatly improves the preparation efficiency, has strong practicability, simple operation, good repeatability and high yield. The experimental results show that the bulk density of the ceramic is 4.326g/cm 3 , the grain size is 0.28μm, the breakdown field strength reaches 110kV/cm, the total energy storage density W tol and the effective energy storage density W rec when high-energy ball milling is performed for 100 minutes. They are 1.612J·cm ‑3 and 0.431J·cm ‑3 , respectively. Compared with the ceramics prepared by the traditional solid-phase method, the fine-grained, dense and overall electrical properties are improved. |
| priorityDate | 2018-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.