Аннотации:
The studies of correlation between magnetic properties and microstructure were conducted on samples of
lithium-substituted ferrite, sintered in radiation and radiation-thermal conditions. Radiation-thermal sintering
was performed for compacts irradiated with a pulsed electron beam with energy of (1.5–2.0) MeV, beam current
per pulse of (0.5-0.9) A, irradiation pulse duration of 500 μs, pulse repetition rate of (5–50) Hz, and compact
heating rate of 1000 C/min. Sintering in thermal furnaces (T-sintering) was carried out in a preheated chamber
electric furnace. The paper shows that magnetic induction does not depend on the ferrite grain size. In this case,
the coercive force is inversely proportional to the grain size and depends on the intragranular porosity of ferrite
samples. In contrast to thermal sintering, radiation-thermal sintering does not cause capturing of intergranular
voids by growing grains and enhances coagulation of intragranular pores.
