Open AccessELECTROMIGRATION IN LITHIUM-TITANIUM FERRITE CERAMICS SINTERED IN RADIATION-THERMAL MODE
Author(s) -
A.P. Surzhikov
Publication year - 2021
Publication title -
eurasian physical technical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.194
H-Index - 2
eISSN - 2413-2179
pISSN - 1811-1165
DOI - 10.31489/2021no2/18-22
Subject(s) - materials science , sintering , intergranular corrosion , ceramic , ferrite (magnet) , grain boundary , composite material , thermal , radiation , metallurgy , microstructure , optics , physics , meteorology
The study investigates electro-migration in Li–Ti ferrite ceramic samples sintered in radiation-thermal mode. To reveal radiation effects, similar measurements are performed for samples sintered in thermal mode. The effect of the state of grain boundaries and the presence of a low-melting additive on electrical properties of sintered ferrites is studied. It is found that structural rearrangement during radiation-thermal sintering occurs in early sintering stages, including the heating period. Study demonstrates that such behavior associated with radiation-induced intensification of the liquid phase spreading over the array of powder grains. In addition, it was shown that structural transformation may be caused by stimulation of intergranular slippage