Low Magnetostrictive Body and Dust Core Using the Same

摘要

Disclosed is a low cost, low magnetostriction body which is decreased only in magnetostriction while maintaining magnetic characteristics such as loss and saturation magnetization at desired values. Also disclosed is a dust core using such a low magnetostriction body. Specifically disclosed is a low magnetostriction body obtained by shaping a soft magnetic material powder added with an organic compound having an effect of changing the magnetostriction of the soft magnetic material when combined with it, and heat-treating a green compact in an inert atmosphere. The absolute value of the magnetostriction lambdaO-P (1 T/50 Hz) of the low magnetostriction body is not more than 1.0x10-6. Also specifically disclosed is a dust core using such a low magnetostriction body.