CHEMISTRY AND MATERIAL SCIENCE

Physico-mechanical properties and radiation tolerance of magnesium-indium ferrite synthesized by the polymer-nitrate method

O. N. Kondrat’eva^a, M. N. Smirnova^a, G. E. Nikiforova^a, A. D. Yapryntsev^a, M. S. Dranik^b, V. A. Ketsko<sup>a

a</sup> Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
^b Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Moscow, Russia

Abstract: The paper discusses the features of polymer-nitrate synthesis of fine MgFeInO$_4$ particles and presents experimental study results of the physico-mechanical properties of ceramics produced on their basis. According to powder XRD data, a single-phase ferrite-spinel powder can be obtained only as a result of hightemperature treatment of an X-ray amorphous precursor prepared by thermal decomposition of a mixture of polyvinyl alcohol and metal nitrates. Ceramics produced using submicron MgFeInO$_4$ particles have a density close to the theoretical one. The results of microhardness measurements using the Vickers method showed that the resulting material has high hardness. The band gap energy of MgFeInO$_4$ was determined from the DRS data. Based on the crystallographic and electrophysical characteristics of the synthesized material, its resistance to radiation-induced structural changes was predicted.

Keywords: mixed ferrites, cubic crystal structure, fine powders, ceramics, Vickers microhardness, band gap energy, radiation tolerance.

Received: 14.11.2025
Revised: 30.11.2025
Accepted: 02.12.2025

Language: English

DOI: 10.17586/2220-8054-2025-16-6-829-836