Abstract
<jats:p>The development of thermoelectric materials has attracted considerable attention with the emergence of a new class of high-entropy materials. Their fabrication is typically based on solid-state synthesis and involves prolonged mechanical mixing of powder precursors, high-temperature heat treatment, and multiple repetitions of these operations. The paper addresses the issues of accelerating the manufacturing process of highly en tropic ceramics for thermoelectric applications through the use of electron beam processing. The effect of cy clic processing of a powder mixture of initial reagents in air with a high-energy electron beam (E = 1.4 MeV) on the sintering of compacts was studied using high-entropy perovskite ceramics (Ca0.2Sr0.2Ba0.2Pb0.2La0.2)TiO3 as an example. The electron beam current was 4 mA (5 treatment cycles) and 5 mA (4 treatment cycles), with mechanical grinding of the powder after each irradiation step. It was found that electron beam treatment enhances the compaction/sintering kinetics. The efficiency of the treatment in creases with the number of cycles. As a result, the sintering process is accelerated, leading to increased ce ramic density and mechanical strength. These improvements are attributed to the formation of the high entropy phase (Ca0.2Sr0.2Ba0.2Pb0.2La0.2)TiO3 in the powder mixture as a result of electron beam processing.</jats:p>