http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2505485-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_046c0943513c2fa83fd95cb75f916a3c |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G45-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-32 |
| filingDate | 2012-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e80667046e5bc3ed0b9be6601730cbbf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_98dc632c77c95288bf1abc3330953743 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4928ed4820ba6cf8cd4889046b6001ea |
| publicationDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2505485-C1 |
| titleOfInvention | Method of obtaining calcium-doped lanthanum manganite |
| abstract | FIELD: chemistry. n SUBSTANCE: calcium-doped lanthanum manganite is obtained by reaction from lanthanum, manganese and calcium oxides by their grinding, first annealing in air at 1350±50°C, cooling to room temperature, re-grinding and pressing obtained material in tablets, its re-annealing in air at 1350±50°C, further annealing in oxygen and cooling to room temperature, with obtaining samples with composition La 1-x Ca x Mn 1-z O 3 , in which selected calcium concentration is 0.05<x<0.22, selected manganese concentration is 0<z≤0.05, first annealing in air is carried out for 12 hours, second re-annealing in air is carried out for 4 hours, annealing in oxygen is carried out at T=650±20°C for 50 hours, and further cooling to room temperature is carried out in air at rate not lower than 10°C/min. n EFFECT: material is simple in manufacturing and comparatively cheap, has high magnet-resistance in broad area of temperatures 5-300 K and especially high values of magnet-resistance at nitrogen and helium temperatures. n 5 dwg, 3 tbl |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2638983-C1 |
| priorityDate | 2012-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.