| Method of producing capacitor powder microgranules of tantalum nanopowder from tantalum pentachloride | |
| 2024-03-22 | |
| 专利权人 | INST METALLURGY & MATERIALS SCI (META-Non-standard) |
| 申请日期 | 2024-03-22 |
| 专利号 | RU2832510-C1 |
| 成果简介 | NOVELTY - Invention relates to powder metallurgy, particularly to production of tantalum powders for production of electrolytic capacitors. Method involves steps of producing primary tantalum nanopowder from tantalum pentachloride in a stream of hydrogen-containing thermal plasma, purification from impurities of hydrogen and chlorine-containing compounds during thermal treatment of the obtained primary tantalum nanopowder. Thermal treatment of tantalum nanopowder is carried out in three stages. At the first stage, said impurities are cleaned in a vacuum, at the second stage, the powder morphology is changed with the transformation of nanoparticles into submicron particles in a vacuum, and at the third stage, the surface of the obtained submicron particles is doped with nitrogen and hydrogen in a gaseous medium containing said elements, further, the obtained doped submicron particles are agglomerated to obtain microgranules, which are classified with separation of microgranules of a given size range. USE - Powder metallurgy. ADVANTAGE - Obtaining submicron particles, the surface layer of which is doped with hydrogen and nitrogen. 1 cl, 6 dwg, 1 ex |
| IPC 分类号 | B22F-001/142 ; B22F-001/145 ; B22F-001/148 ; B22F-001/16 ; B22F-009/14 ; C22B-034/24 |
| 国家 | 俄罗斯 |
| 专业领域 | 材料科学 |
| 语种 | 英语 |
| 成果类型 | 专利 |
| 文献类型 | 科技成果 |
| 条目标识符 | http://119.78.100.226:8889/handle/3KE4DYBR/17583 |
| 专题 | 中国科学院新疆生态与地理研究所 |
| 作者单位 | INST METALLURGY & MATERIALS SCI (META-Non-standard) |
| 推荐引用方式 GB/T 7714 | SAMOKHIN A V,ALEKSEEV N V,STAROSTIN S P,et al. Method of producing capacitor powder microgranules of tantalum nanopowder from tantalum pentachloride. RU2832510-C1[P]. 2024. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论