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Preparation and Characterization of Fibrous Copper Powder used for Conductive Filler

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REWAS 2013

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Abstract

A novel two-stage process is investigated for preparing the fibrous copper powder used for conductive filler in conductive paste. Based on thermodynamic simulation of Cu(II) — C2O4 2- -NH3 — NH4 + — H2O system, the rod-shape copper oxalate salt is synthesized firstly with coordination precipitation method, using ammonium oxalate and a purified copper salt solution which could be from either primary or secondary copper-bearing resources. According to the results of XRD, element analysis and X-ray single crystal diffraction, it can be inferred that the composition of the copper oxalate salt is [Cu(NH3)3]C2O4 • xH2O, and the NH3 plays a significant role in the formation of rod-shape crystal. Secondly, the copper oxalate salt is decomposed to fibrous copper powder at 350°C in inert atmosphere. The thermo-decomposition procedure is characterized by TG-DSC-FTIR, XRD and SEM. It is found that the phase of copper oxalate salt transforms as following: [Cu(NH3)3]C2O4 • xH2O→ [Cu(NH3)3]C2O4→ CuC2O4→Cu.

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Authors and Affiliations

  1. School of Metallurgy and Resource, Anhui University of Technology, Ma’anshan, Anhui, 243002, PR China

    Youqi Fan & Zhuo Zhao

  2. Department of Materials Science and Engineering, Delft University of Technology, Mekelweg 2, 2628 CD, Delft, The Netherlands

    Yongxiang Yang & Yanping Xiao

Authors
  1. Youqi Fan
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  2. Yongxiang Yang
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  3. Yanping Xiao
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  4. Zhuo Zhao
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Editor information

Editors and Affiliations

  1. SINTEF, Trondheim, Norway

    Anne Kvithyld (a senior research scientist) (a senior research scientist)

  2. Umicore Precious Metals Refining, Hoboken, Belgium

    Christina Meskers (leads the business development and marketing team) (leads the business development and marketing team)

  3. Energy Systems Division, Argonne National Laboratory, USA

    Gregory Krumdick (principal systems engineer) (principal systems engineer)

  4. Kroll Institute for Extractive Metallurgy in Metallurgical & Materials Engineering, Colorado School of Mines, USA

    Brajendra Mishra (professor and the Assoc. Director) (professor and the Assoc. Director)

  5. Outotec Finland, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  6. Aalto University, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  7. University of Melbourne, Australia

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  8. Central South University Changsha, China

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  9. TU Delft, Netherlands

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  10. University of Stellenbosch, South Africa

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  11. Saint-Gobain Innovative Materials R&D, Belgium

    Cong Wang (Senior Research Engineer) (Senior Research Engineer)

  12. Missouri University of Science and Technology, USA

    Mark Schlesinger (Professor of Metallurgical Engineering) (Professor of Metallurgical Engineering)

  13. Golisano Institute for Sustainability, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  14. Rochester Institute of Technology, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  15. Worcester Polytechnic Institute (WPI), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  16. Integrative Materials Design Center (iMdc), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  17. Argonne National Laboratory, USA

    Jeffrey Spangenberger (Engineering Specialist, Senior) (Engineering Specialist, Senior)

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© 2013 TMS (The Minerals, Metals & Materials Society)

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Fan, Y., Yang, Y., Xiao, Y., Zhao, Z. (2013). Preparation and Characterization of Fibrous Copper Powder used for Conductive Filler. In: Kvithyld, A., et al. REWAS 2013. Springer, Cham. https://doi.org/10.1007/978-3-319-48763-2_13

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