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Peculiarities of Radiation Synthesis of MeWO4 Ceramics

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Communication Open Access

Peculiarities of Radiation Synthesis of MeWO4 Ceramics

Zhanar Bakiyeva 1 Victor Lisitsyn 2 Gulnur Alpysova 1 Anna Karnaukhova 2,* Dossymkhan Mussakhanov 3 Dmitriy Afanasyev 1 Mickhail Golkovski 4

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1
Faculty of Physics and Engineering, Karaganda National Research University Named after E.A. Buketov, Karaganda 100024, Kazakhstan
2
Department of Materials Science, National Research Tomsk Polytechnic University, 30, Lenin Ave., Tomsk 634050, Russia
3
Faculty of Physics and Engineering, Eurasian National University Named after L.N. Gumilyov, Astana 010008, Kazakhstan
4
Budker Institute of Nuclear Physics, SB RAS, Novosibirsk 630090, Russia
*
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Received: 23 January 2026 Revised: 16 March 2026 Accepted: 10 April 2026 Published: 30 April 2026

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© 2026 The authors. This is an open access article under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/).

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High-Temp. Mat. 2026, 3(2), 10008; DOI: 10.70322/htm.2026.10008
ABSTRACT: We report the results of MeWO4 ceramics synthesis by the direct exposure of metal (Mg, Ca, Zn, W) oxides mixture to a high-power flux of high-energy electrons. The oxide powder particle sizes are 1–10 microns. The synthesis occurs with high efficiency in less than 1 s without the use of any additional substances and energy sources. The purpose of this work is to establish the main processes that ensure the effective synthesis of MgWO4, CaWO4, and ZnWO4 ceramics from ZnO, CaO, MgO, and WO4 oxides, which differ significantly in their physical and chemical properties. It has been found that the dependence of synthesis efficiency on the electron beam power density and the power density threshold at which synthesis begins varies significantly for simple metal oxides and is very close for the tungstates of these metals. The most probable explanation for the observed effect is redistribution of absorbed radiation energy. WO3 powder particles have a high absorptance of the incident electron radiation. The result is a cascade multiplication of primary electrons into secondary electrons with much lower energy. Secondary electrons are efficiently absorbed by MgO, CaO, and ZnO particles, leading to their efficient decomposition and the formation of a new phase.
Keywords: Oxide ceramics; Tungsten; Radiation synthesis; Electron beam irradiation; Power density
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