Synthesis and Characterization of W Composite Powder with La 2O 3-Y 2O 3 Nano-Dispersoids by Ultrasonic Spray Pyrolysis

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...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2022-11, Vol.67 (4), p.1507-1510
Main Authors: Heo, Youn Ji, Lee, Eui Seon, Kim, Jeong Hyun, Lee, Young-In, Jeong, Young-Keun, Oh, Sung-Tag
Format: Article
Language:English
Subjects:
Addition polymerization
Dispersions
Fourier transforms
High temperature
Hydrogen
la2o3-y2o3 dispersion
Lanthanum oxides
Nanoparticles
Nitrates
polymeric additive solution method
Polymers
Scanning electron microscopy
Spectrum analysis
Spray pyrolysis
Synthesis
ultrasonic spray pyrolysis
w composite powder
X ray photoelectron spectroscopy
Yttrium
Yttrium oxide
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Summary: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.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.24425/amm.2022.141083