Volume 38 Issue 6
Dec.  2023
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LI Zhongxiang, ZHANG Jiankang, XIE Yongxu, CHEN Xueqing. Study on Purification Process of Sintered Tantalum Rod[J]. Development and Application of Materials, 2023, 38(6): 58-62.
Citation: LI Zhongxiang, ZHANG Jiankang, XIE Yongxu, CHEN Xueqing. Study on Purification Process of Sintered Tantalum Rod[J]. Development and Application of Materials, 2023, 38(6): 58-62.
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Study on Purification Process of Sintered Tantalum Rod

  • 1. Ningxia Orient Tantalum Industry Co., Ltd., Shizuishan 753000, China;

  • 2. State Key Laboratory of Special Rare Metal Materials, Shizuishan 753000, China;

  • 3. Northwest Rare Metal Materials Research Institute Ningxia Co., Ltd., Shizuishan 753000, China

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  • Received Date: June 28, 2022
  • Available Online: January 09, 2024
    Graphical Abstract
    • Abstract
  • The purification process of the sintered tantalum rod is studied, and the results show that sheath for the molding of tantalum rod contributes to the surface contamination, which leads to the increase of C content. The latex sheath with low cracking temperature can effectively reduce the residual C compared with the rubber sheath. High temperature sintering can remove part of the residual impurities, but to completely remove them is very difficult. The HNO3 + HF acid system can effectively remove the inclusion in the surface of the tantalum rod and achieve the purification of the tantalum rod.
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    • References (5)
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