研究发现，在应力退火下两种合金都获得了横向感生磁各向异性；
The study shows that the alloys under stress annealing can obtain transversal induced magnetic anisotropy.
利用短时矩形脉冲电流对近零磁致伸缩系数钴基非晶态合金带进行退火处理，得到约114%的巨磁阻抗变化率。
The GMI ratio of about 114 % is obtained in near zero-magnetostrictive Co-based amorphous alloy ribbon annealed by short time rectangular pulse current.
本发明还提供了上述 铁氧体磁粉的制备方法，其包括以下步骤：配料、混料、预烧、粗破碎、 细磨、烘干、退火、解碎。
The invention also provides the preparation method of the ferromagnetic oxide powder, comprising the steps of dosing, mixing, preburning, crude crushing, fine grinding, drying, annealing and smashing.
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