Microstructure of Mo-La2O3 Composite Powder Prepared Using Two Different High Energy Ball Milling Systems

Serhii Tkachenko; Ladislav Čelko; Michaela Remešová; Vendula Bednaříková; Karel Dvořák; Pavel Komarov; Karel Zábranský

doi:10.4028/p-a18wu2

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HomeSolid State PhenomenaSolid State Phenomena Vol. 334Microstructure of Mo-La2O3 Composite Powder...

Microstructure of Mo-La₂O₃ Composite Powder Prepared Using Two Different High Energy Ball Milling Systems

Abstract:

The present study was focused on the high-energy ball milling preparation of the oxide dispersed Mo-10 vol.%La₂O₃ composite powder by using two high-energy ball milling systems, including an attritor mill with a horizontally operating rotor and a planetary mill. Microstructural investigations using scanning electron microscopy (SEM) and X-ray powder diffraction (XRD) found out that composite powders with a refined laminated microstructure can be obtained using both milling systems. Under selected milling conditions, Mo-La₂O₃ powder with better particle size homogeneity and more uniform and dispersed ceramic phase distribution was received in the planetary mill that can be connected with the more balanced contribution of breaking and cold welding processes during high energy milling.

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Periodical:

Solid State Phenomena (Volume 334)

Pages:

109-114

DOI:

https://doi.org/10.4028/p-a18wu2

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Online since:

July 2022

Authors:

Serhii Tkachenko*, Ladislav Čelko, Michaela Remešová, Vendula Bednaříková, Karel Dvořák, Pavel Komarov, Karel Zábranský

Keywords:

Attritor, Composite, High-Energy Milling, Lanthanum, Molybdenum, Oxide Dispersion, Planetary Mill

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