Preparation of W-Cu Composite Powders by Hydrogen Reduction of WO3 And Copper Nitrate Mixture

Authors

  • Ji Won Choi Seoul National University of Science And Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea https://orcid.org/0009-0004-0070-5761
  • Ji Young Kim Seoul National University of Science And Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea
  • Youngmin Kim Seoul National University of Science And Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea https://orcid.org/0009-0001-3394-8311
  • Eui Seon Lee Seoul National University of Science And Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea https://orcid.org/0000-0001-6405-7303
  • Sung-Tag Oh Seoul National University of Science And Technology, Department of Materials Science and Engineering, Seoul 01811, Republic of Korea https://orcid.org/0000-0003-4556-4291

DOI:

https://doi.org/10.24425/amm.2025.154455

Abstract

The synthesis of fine W composite powder with homogeneously dispersed Cu particles was investigated. Commercial or ultrasonic spray pyrolysis WO3 powders were used as source materials of W, and copper nitrate was added and hydrogen-reduced to finally fabricate W-Cu composite powder. The reduced powder prepared using ultrasonic spray pyrolysis WO3 powder exhibited a spherical agglomerate composed of fine particles and pores, whereas that using commercial WO3 showed relatively fine particles with a size of about 200 nm. TEM analysis revealed that Cu elements were uniformly distributed in the composite powder. These results help to optimize the synthesis process of homogeneous W-Cu nanocomposite powders.

Published

2025-09-30

How to Cite

Choi, Ji Won, et al. “Preparation of W-Cu Composite Powders by Hydrogen Reduction of WO3 And Copper Nitrate Mixture”. Archives of Metallurgy and Materials, vol. 70, no. 3, Sept. 2025, doi:10.24425/amm.2025.154455.

Issue

Vol. 70 No. 3 (2025)

Section

Articles