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非晶态铁磁性合金不仅磁性优良,而且电阻率比同组分晶态合金高1—2个数量级.它取代硅钢片等制成变压器铁芯使铁损减少3/4,并提高工作频率,已在美、日、德、法等国广泛应用.然而非晶态合金的导电性理论至今仍很不完善,有较大局限性.(1)推广的 Ziman 理论可解释在任意温度简单金属(d 壳层全空或全满的金属)玻璃的电阻特性,却不能解释非简单金属(含过渡金属和稀土元素)玻璃的电导输运特性.因为后
The amorphous ferromagnetic alloy is not only excellent in magnetic properties, but also has a resistivity higher than one to two orders of magnitude higher than that of the same component crystalline alloy.It replaces the silicon steel sheet to make the transformer iron core to reduce the iron loss by 3/4 and improve the working frequency, Has been widely used in the United States, Japan, Germany, France and other countries.However, the conductivity theory of amorphous alloys is still not perfect, with great limitations. (1) Ziman theory can be extended at any temperature simple metal ( d shell full or full metal) glass resistance characteristics, but can not explain the conductivity of non-simple metal (including transition metal and rare earth elements) glass transport characteristics.