ОСОБЛИВОСТІ СТРУКТУРОУТВОРЕННЯ І ВЛАСТИВОСТІ ПОРОШКОВИХ ТЕРМОМАГНІТНИХ МАТЕРІАЛІВ НА ЗАЛІЗО-НІКЕЛЕВІЙ ОСНОВІ ЛЕГОВАНИХ РІЗНИМИ ДОБАВКАМИ

Abstract

The processes of formation and sintering of powdered materials on a nickel-iron base were studied in order to obtain high-density products with the required magnetic properties. The effect of various non-magnetic additives (Mo, Cr, Ti) in Fe — Ni basis on the production conditions, thermomagnetic properties and hardness of thermomagnetic powder materials was studied. It has been established that with an increase in the concentration of a nonmagnetic additive, the amount of the solid solution phase increases, which has a lower saturation inductance. The use of titanium hydride (TiH₂) as the main alloying material accelerates phase formation and activates diffuse processes during synthesis. To use powdered thermomagnetic materials in electrical devices as a thermo-sensitive element of relay structures, their bench tests were carried out.