http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100889387-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3217 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-668 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6021 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-428 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-591 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B38-0051 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-505 |
| filingDate | 2007-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2009-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100889387-B1 |
| titleOfInvention | Method for manufacturing silicon nitride ceramics, method for manufacturing silicon nitride ceramic rotors and pipes |
| abstract | The present invention relates to a method for producing silicon nitride ceramics, a silicon nitride ceramic rotor and pipe, and a method for producing the same, including at least 5% by weight of a metal silicon (Si) powder such that the sum of the silicon nitride (Si 3 N 4 ) powder is 100% by weight. 50 wt% or less, and compared to the sum of the weight of the metal silicon and silicon nitride (Si 3 N 4 ) alumina (Al 2 O 3 ) powder of at least 1% by weight 5% by weight, yttria (Y 2 O 3 A mixing step of mixing and mixing the powders to be 1 wt% or more and 6 wt% or less; A molding step of manufacturing a molded body in a designated shape by using the powder mixed in the mixing step; A gas phase reaction sintering step of sintering the metal silicon (Si) contained in the molded body by adjusting a temperature increase rate in a nitrogen gas atmosphere, at a temperature range of 1100 ° C. to 1400 ° C .; Atmospheric pressure sintering step of proceeding the densification of silicon nitride particles by forming a eutectic liquid phase of the oxide sintering aid by controlling the temperature increase rate in the temperature range of 1400 ℃ to 1820 ℃ below the reaction sintered in the gas phase reaction sintering step; As a technical gist of the present invention, the gas phase reaction and atmospheric pressure sintering are continuously performed in the process of raising the temperature within the temperature range of 1100 ° C or more and 1820 ° C or less. The present invention relates to a silicon nitride ceramics manufacturing method, a silicon nitride ceramic rotor and a pipe manufacturing method, and a method of manufacturing the silicon nitride sintered body, which can be easily manufactured at a low temperature and with low porosity, thereby reducing energy and manufacturing cost.n n n n Silicon Nitride Ceramics Reaction Sintering Atmospheric Pressure Sintering Rotor Pipe |
| priorityDate | 2007-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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