Effect of replacing B by Zr in amorphous Co-Fe-Si-B soft magnetic alloys

被引：0
作者：
Diraviam Arvindha Babu
Wasif Hussain Khan
Jeyaramane Arout Chelvane
Trilochan Sahoo
Dilshad Akhtar
机构：
[1] Defence Metallurgical Research Laboratory,
[2] National Institute of Technology,undefined
[3] Defence Metallurgical Research Laboratory,undefined
[4] Proof and Experimental Establishment,undefined
[5] Defence Metallurgical Research Laboratory,undefined
来源：
Journal of Materials Research | 2012年 / 27卷
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摘要：
Amorphous ribbons of Co69Fe7Si14B10-xZrx (x = 0, 2.5, 5, 7.5 and 10) alloys have been prepared and their structure, soft magnetic and magnetoimpedance (MI) properties have been investigated. Glass forming ability (GFA) of these alloys was calculated using GFA parameter (α = Tx/Tl) and verified by experimental results. Saturation magnetization of the amorphous ribbon decreases on replacement of B by Zr which reveals Zr has more pronounced effect in decreasing saturation magnetization. However, improvement of other soft magnetic properties (coercivity and permeability) leads to considerable increase in MI properties. Annealing leads to crystallization of Co2Si, Co2B, Co2Zr and CoSi phases causing deterioration of soft magnetic and MI properties due to the magnetic hardness of the secondary phase which arises due to the presence of magnetocrystalline anisotropy.
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页码：1080 / 1085
页数：5
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