Thermogravimetric investigation of the effect of annealing conditions on the soft ferrite phase homogeneity

Solid-state synthesis of lithium-zinc ferrites by a high-energy electron beam heating

“…For t ann = 120 min, we have the well pronounced DTG peak at ca. 490°С; the position of this maximum corresponds to the Curie temperature of lithium-zinc ferrite with х = 0.2 [5]. Since curves 4 in Fig.…”

“…The efficiency of lithium ferrite synthesis by RT method was established in [3][4][5][6]. However, the results presented there are insufficiently informative, since they were obtained either for simple binary Li 2 CO 3 -Fe 2 O 3 systems [3] or ternary Li 2 CO 3 -Fe 2 O 3 -ZnO systems, but for a particular annealing regime [4][5][6].…”

Microwave properties of Li-Zn ferrite ceramics

“…In [10][11][12] it was shown that the most effective way to improve the homogeneity and intensification of solid-phase interactions is radiation-thermal synthesis of mechanically activated mixtures. It has been established that the present method allows not only heating to significantly reduce the time, temperature synthesis, but also to improve the performance of the lithium and lithium-substituted ferrites.…”

“…All this contributes to the heterogeneity of the ferrite magnetic anisotropy and degradation him magnetic characteristics. The electromagnetic characteristics of microwave ferrites (including lithium ferrites) are particularly sensitive to disturbance of chemical homogeneity [10][11][12]. Some success in obtaining powders by grinding ceramic ferrites is achieved using high-energy planetary mills.…”

Study of the Radio-Wave Absorbing Properties of a Lithium-Zinc Ferrite Based Composite

“…All of this promotes the spread of the magnetic anisotropy fields over ferrite and thereby degrades its magnetic characteristics. Especially sensitive to violations of chemical homogeneity are the electromagnetic characteristics of microwave-ferrites, including lithium ferrites [8][9][10].…”