Презентация на тему Objective

the magnetic properties of hexaferrite powders SrFe12O19 strontium obtained

by crystallization of the oxide glass, with the addition of Fe-B.

                                                                                                       

the alloy samples of strontium hexaferrite composition of 95%

SrFe12O19 and 5% Fe-B.
Testing methods of heat treatment;
The study of the magnetic properties of the samples after grinding;

Tasks

powders of strontium hexaferrite with the ability to use

up to 4 sealable drums.

Measurements of the magnetic properties   Measurement of the hysteresis properties of the samples is carried out at room temperature for gisterezisgrafe using microwebermeter F192.

Pressing
Was conducted on "Hydraulic press" install at 60 kg / cm 2 (pre-powder in the mold magnetized in a magnetic field).

Experimental technique

hexaferrite with additions of iron boride.

alloys and amorphous structure.
It is shown that vitrified grinding

in distilled water, compared to grinding in toluene resulted in a slight decrease in the coercive force (from 9 to kilooersted 8,2 kilooersted) and increase residual induction (from 0,75 kilogauss to 1,25 kilogauss, respectively.
After annealing at presszagotovki 1050 C at 30 min following magnetic properties obtained

Conclusions.