http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03153003-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d107b35f2512d0630fdf32bb7ab5c994 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F41-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-08 |
| filingDate | 1989-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7b006222f29824768705dc5c10840f3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6f8b56672b930d384fb4ac111967747 |
| publicationDate | 1991-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03153003-A |
| titleOfInvention | Manufacture of bonded magnet of excellent oxidation-resistant property |
| abstract | PURPOSE: To obtain a bonded magnet whose oxidation-resistant property is excellent by a method wherein a film of an organic high polymer is formed, by a plasma polymerization operation, on the surface of an R 2 T 14 B-based alloy powder which is composed of rare-earth elements R including yttrium, a transition metal T and boron B. n CONSTITUTION: An R 2 T 14 B-based alloy powder which has been degreased and cleaned is placed inside a reaction tube provided with required electrodes; the inside of the reaction tube is set to 10 -3 Torr or lower; after that, an organic substance is introduced in such a way that the inside of the tube becomes a required pressure; a glow discharge is executed; the alloy powder covered with an organic high polymer is obtained. As the organic substance to be used, a compound which does not have a functional group to form a high polymer may be used; e.g. a compound having a vinyl group, 4-methylpyridine, furan, n-hexane, tetrafluoromethane, dimethylsulfoxide and the like can be enumerated; normally, they are introduced into the reaction tube as a vapor; they may be introduced as a liquid/gaseous colloid. As an output of the glow discharge, about 10 to 300W is appropriate. The obtained high-polymer film is provided with a sufficient bonding property and reliability as an oxidation-resistant film as it is. However, it is preferable to heat-treat the film at a melting point or lower of said high polymer. n COPYRIGHT: (C)1991,JPO&Japio |
| priorityDate | 1989-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.