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| Effect of Vacuum Sintering Conditions on Physical Properties of Tantalum Powder |
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Received:May 22, 2022
Revised:May 28, 2022
Accepted:May 30, 2022
Published Online:September 16, 2022
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| DOI：doi：10.3969/j.issn.1007-7545.2022.10.010 |
| KeyWord:vacuum sintering; tantalum powder; specific surface area |
| Author | Institution |
| MA Hai-yan |
宁夏东方钽业股份有限公司 ? 稀有金属特种材料国家重点实验室 |
| LUO Guo-qing |
宁夏东方钽业股份有限公司 稀有金属特种材料国家重点实验室 |
| LI Hui |
宁夏东方钽业股份有限公司 稀有金属特种材料国家重点实验室 |
| WANG Xiao-ming |
宁夏东方钽业股份有限公司 |
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| Abstract: |
| Effects of vacuum sintering conditions on specific surface area and surface morphology of tantalum powder prepared by sodium reduction method were studied. The empirical equations of initial sintering temperature and specific surface area of tantalum powder with different specific surface areas varying with vacuum sintering temperature were obtained by fitting. It is found that the specific surface area and micro morphology of tantalum powder do not change greatly when sintering below the initial sintering temperature. When the sintering temperature is higher than the initial sintering temperature, the specific surface area drops with the increase of vacuum sintering temperature, and the fine dendrites of tantalum powder become coarsening. |
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