Question

write true or false magnetic losses is magnetic powder when it is heated​

Answer 1

Answer:

True

Explanation:

Effect of heat-treatment of reduced iron powders on its magnetic properties was studied. The powders were treated at different temperatures and then compacted to ring samples at 500 MPa. Magnetic properties and magnetic loss of the material were analyzed. The results show that when the reduced iron powders annealed at 700°C for 30 min, static magnetic properties of the soft magnetic samples were improved, and the initial permeability and maximum permeability increase by one time. Since Vickers-hardness of the annealed powder decreases from 61 to 51, the density of the samples increases by 0.3 g/cm3 as the improvement of its compatibility. The magnetic coercivity and hysteresis loss decrease, and the permeability increases for the samples prepared using the iron powders annealed at 700°C for 30 min, and thus soft magnetic performance of the material is improved under alternating magnetic field.

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Answer 2

true.Always hope help to you