Variation with specimen size of some properties of Alcomax III at 50 Hz excitation

When subjected to dynamic excitation at 50 Hz with sinusoidal field intensity, the power loss per unit volume, coercive force and remanent flux density of square-section specimens of Alcomax III were found to be functions of specimen size. At fixed excitation the coercive force increased and the remanent flux density decreased both as linear functions of specimen section side dimension. Loss per unit volume at low field intensities decreased as specimen size increased and was less than that calculated from the static
B/H
loops. With high field intensities the loss per unit volume increased with increase of specimen size and was in excess of that predicted by the static
B/H
loops.