非晶软磁材料的电阻率比晶态的坡莫合金高三倍,并且具有低的矫顽力和低的磁各向异性,因而磁致损耗应当低.按涡流损耗正比于带厚的平方,反比于电阻率来估算,非晶的总损耗应比硅钢低100倍,而实际测量仅低2～10倍.与坡莫合金相近,甚至比坡莫合金损耗略高.是什么原因使理论估算与实验相差如此之大,目前尚不完全清楚. Amorphous soft magnetic material resistivity than the crystalline permalloy three times, and has low coercivity and low magnetic anisotropy, and therefore the magnetic loss should be low.According to the eddy current loss is proportional to the square of the thickness, Inversely proportional to the resistivity to estimate, the total amorphous loss should be 100 times lower than silicon steel, while the actual measurement of only 2 to 10 times lower than the Permalloy, and even slightly higher than permalloy loss is what makes the theoretical estimates The difference with the experiment is so big that it is not yet fully understood.