http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SU-1675201-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7379c9568735bec0597b603b47dbf60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d51b23a93412dc18cb6999eacb45afad http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e044c974221e4ec856fe72f5c23f66a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-06 |
| filingDate | 1989-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_324a092a8079d3df218bfda477e33c00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_769a3c953e1e14fffd1ed9deee697a6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df87b192dbf5ca5ba5c6971e5a521cff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ba1ee5ae963900ab5f03de95f154c0b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f2c5a651928d8528c67ca653d4a8e22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_186422c8f5d524ddd18c3495492d72b0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f614c5a4dcfab36a8e35a32de3b87e6c |
| publicationDate | 1991-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SU-1675201-A1 |
| titleOfInvention | Method of producing multicomponent finely dispersed powders basing on aluminium nitride and rare-earth metal compounds |
| abstract | The invention relates to a method for producing finely dispersed multicomponent powders based on aluminum nitride and compounds of rare-earth elements and improves the thermal conductivity of ceramics made from target products by increasing their phase and chemical purity. A mixture of metallic aluminum and yttrium oxide powders, as well as oxygen-free compounds of the elements or their mixture, whose affinity for oxygen is higher than that of aluminum, the molar ratio of oxygen and these elements are chosen equal to 0.3 - 1.2: 1. As oxygen-free compounds, gaseous hydrocarbons are used in a mixture with ammonia with a mass ratio of 0.05-0.1: 1 or a calcium salt selected from the group of chloride, fluoride, carbide, or cyanamide. Further, ammonia is introduced into the flow zone, the two-phase flow is cooled in a heat exchanger, and the fine powder of the target product is trapped on the surface of a bag filter. The resulting powder is a homogeneous mixture of aluminum nitride, oxide, and yttrium nitride with a free oxygen content of 1.1 - 1.8 wt.%. The thermal conductivity of ceramics made from it was 125 170W / mK. 2zp f-ly 3 tabl sl |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5468697-A |
| priorityDate | 1989-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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