http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04309203-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1784eb7fc902d292db30e120ec712d5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F10-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-127 |
| filingDate | 1991-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23e763ef46456fef53e1fef5305dd0ff |
| publicationDate | 1992-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04309203-A |
| titleOfInvention | Manufacture of nonmagnetic substrate for magnetic head |
| abstract | PURPOSE: To obtain a method of manufacturing a nonmagnetic substrate for a magnetic head wherein 1-5wt.% alumina is added to basic composition of CoO and/or NiO, on which substrate a metal magnetic film is deposited. n CONSTITUTION: In the manufacturing process of a nonmagnetic substrate for a magnetic head wherein alumina of 1-5wt.% is added to basic composition of CoO and/or NiO, normal pressure sintering is performed for 10 hours at a temperature in the range of 1150-1250°C, in order that alumina spinel may be finely and uniformly dispersed, and further an HIP process is performed at a temperature which is 0-50°C lower than the sintering temperature. The above manufacturing method has a merit that a dense sintered body having stable bending strength and small grain diameter of crystal can be obtained. Thereby chipping generated at the time of substrate machining is reduced, and the economy like the yield of substrate machining is improved. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1991-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID9989226 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID451818717 |
Total number of triples: 15.