Archives of Metallurgy and Materials

Institute of Metallurgy and Materials Science of Polish Academy of Sciences
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Synthesis and Characterization of W Composite Powder with La2O3-Y2O3 Nano-dispersoids by Ultrasonic Spray Pyrolysis

  • Youn Ji Heo (Seoul National University of Science and Technology, Department of Materials Science and Engineering) ;
  • Eui Seon Lee (Seoul National University of Science and Technology, Department of Materials Science and Engineering) ;
  • Jeong Hyun Kim (Seoul National University of Science and Technology, Department of Materials Science and Engineering) ;
  • Young-In Lee (Seoul National University of Science and Technology, Department of Materials Science and Engineering) ;
  • Young-Keun Jeong (Pusan National University, Graduate School of Convergence Science) ;
  • Sung-Tag Oh (Seoul National University of Science and Technology, Department of Materials Science and Engineering)
  • Published : 20220000
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Abstract

An optimum route to synthesis the W-based composite powders with homogeneous dispersion of oxide nanoparticles was investigated. The La2O3 dispersed W powder was synthesized by ultrasonic spray pyrolysis using ammonium metatungstate hydrate and lanthanum nitrate. The dispersion of Y2O3 nanoparticles in W- La2O3 powder was carried out by a polymer addition solution method using yttrium nitrate. XPS and TEM analyses for the composite powder showed that the nano-sized La2O3 and Y2O3 particles were well distributed in W powder. This study suggests that the combination processing of ultrasonic spray pyrolysis and polymeric additive solution is a promising way to synthesis W-based composite powders.

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Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (2019R1A2B5B01070587).