Powder Metallurgy and Metal Ceramics

, Volume 57, Issue 3–4, pp 127–137 | Cite as

Investigation of Carbon Source and Atmosphere During Reduction–Carbonization Process of Synthesizing WC–Co Composite Powders Via Spray Conversion Method

  • Zhonghua Wang
  • Genfeng Shang
  • Jian Lü
  • Jiangao Yang
  • Hang WangEmail author

Ultrafine WC–Co composite powders are synthesized via spray conversion method. The effect of carbon source (organic carbon and carbon black) and atmosphere (H2 and N2) on the composite powders is investigated in terms of phase composition, particle size distribution, morphology, and carbon content, including the total carbon and free carbon using X-ray diffraction, particle size analyzer, scanning electron microscope, and infrared carbon and sulfur analyzer. The results show that using organic carbon or carbon black and H2 or N2 has its own advantages and disadvantages. Therefore, carbon source and the atmosphere can be chosen according to the application of the composite powders, i.e. cemented carbides and thermal spraying.


WC–Co composite powders spray conversion processing reduction–carbonization carbon source atmosphere 



Zhonghua Wang is grateful to Mr. Jie Wu for his assistance in conducting experiments.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Zhonghua Wang
    • 1
    • 2
  • Genfeng Shang
    • 1
    • 2
  • Jian Lü
    • 1
  • Jiangao Yang
    • 1
  • Hang Wang
    • 1
    Email author
  1. 1.Institute of Engineering ResearchJiangxi University of Science and TechnologyGanzhouP. R. China
  2. 2.School of Materials Science and EngineeringJiangxi University of Science and TechnologyGanzhouP. R. China

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