산업기술연구 (Journal of Industrial Technology)

  • 제41권1호
  • /
  • Pages.25-30
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  • 2021
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  • 1229-9588(pISSN)
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  • 1598-1371(eISSN)
강원대학교 산업기술연구소 (Kangwon National University, Institute of Industrial Technology)
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탈수소화 분위기가 탄탈륨 분말 수소농도에 미치는 영향 연구

Effect of dehydride atmosphere on Hydrogen concentration of Tantalum

  • Lee, Ji-eun (Material Science and Chemical Engineering Center, Institute for Advanced Engineering) ;
  • Yoon, Jin-Ho (Material Science and Chemical Engineering Center, Institute for Advanced Engineering) ;
  • Lee, Chan Gi (Material Science and Chemical Engineering Center, Institute for Advanced Engineering)
  • 투고 : 2021.09.16
  • 심사 : 2021.10.12
  • 발행 : 2021.10.31
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초록

Hydride-dehydride process for efficient recycling of tantalum (Ta) is used for manufacturer of Ta powder. In case of metal powder, Impurities as like nitride, oxygen, hydrogen is decreased of physical properties. For manufacture of Ta powder, control of theses impurities is important. In this study, to decreased of impurities on Ta powder using HDH process optimize dehydride condition. Dehydration behavior of Ta is depended on temperature, time, and atmosphere. Phase transition of Ta hydride is analyzed by X-ray diffraction (XRD). Concentration of hydrogen is decreased with temperature increased. At high temperature, concentration of hydrogen in Ta is similar according to time increased. Size and morphology of powder is not observed after dehydride. Ta powder, which is less than 20 um, concentration of hydrogen under 800 ppm is obtain.

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과제정보

이 논문은 2021년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(20195210100070, 건습식 통합공정을 이용한 저품위 탄탈륨폐자원의 업사이클링 기술개발)

참고문헌

  1. 한국희소금속산업기술센터, 2021, 2021 희소금속 수출입 통계 - 28. 탄탈륨 .
  2. Lee, J.E, Lee, C.G., Park, J.H., Yoon, J.H., 2018, Study on Manufacture of Tantalum Powder from Tantalum Scrap using Hydride-Dehydride Process (HDH Process), J. of Korean Inst. of Resources Recycling 27:5 30-37. https://doi.org/10.7844/KIRR.2018.27.5.30
  3. Choi, G.S., Lim, J.W., 2008, Production and Applications of Niobium and Tantalum, Trends in Metals & Materials Engineering, 21:5, 29-35.
  4. Taxak, M., Kumar, S., Krishnamurthy, N., Suri A.K., Tiwari G.P., 2012, Change in lattice parameter of tantalum due to dissolved hydrogen Processing and Application of Ceramics, 6:2, 73-76. https://doi.org/10.2298/PAC1202073T
  5. Lee, J.E., Yoon, J.H., Lee, C.G., Park, J.H., Park, I.K., 2017, Enhanced Tantalum Hydride Formation by the Catalytic Effect of Tungsten for Hydrogen Dissociation, Science of Advanced Materials, 12:9, 2173-2177.
  6. Park, K.T., Park, J.H., Yoon, J.H., Lee, J.E., Park. I.K., 2017, Temperature-dependent Ta hydride formation for recycling of Ta scraps: Experimental and thermodynamic investigations, International Journal of Refractory Metals and Hard Materials. 65, 83-87. https://doi.org/10.1016/j.ijrmhm.2016.11.011