http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109158612-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C32-0031 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C1-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F1-0003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C27-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C1-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C32-00 |
| filingDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109158612-B |
| titleOfInvention | Preparation method of tungsten alloy precursor composite powder, tungsten alloy and preparation method thereof |
| abstract | The invention relates to a preparation method of tungsten alloy precursor composite powder, a tungsten alloy and a preparation method thereof, and belongs to the technical field of high-temperature structural materials. The preparation method of the tungsten alloy precursor composite powder comprises the following steps: providing a mixed dispersion of ammonium paratungstate, soluble iron salt, soluble nickel salt and soluble aluminum salt; adjusting the pH value of the mixed dispersion liquid to be not more than 1.5 by oxalic acid, completely reacting, and then removing the solvent to obtain mixed powder. According to the preparation method of the tungsten alloy precursor composite powder, the pH of the mixed dispersion liquid is adjusted by oxalic acid, and the newly generated tungstic acid, ferric oxalate, nickel oxalate and aluminum oxalate are jointly reacted and jointly precipitated, so that the uniformity of each component in the mixed powder is improved, the obtained composite powder can be used for fine-grain strengthening and dispersion strengthening of tungsten alloy, the strength of the tungsten alloy can be greatly improved, the toughness of the tungsten alloy can be improved, and the preparation method can be used for preparing nano ceramic particle dispersion strengthened high-strength and high-toughness tungsten alloy. |
| priorityDate | 2018-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.