Magnetization and Demagnetization Behaviour for Nd4Fe77.5B18.5 Nanocrystalline Alloy

Liu Xubo; Xiao Yaofu; Dong Ming

doi:10.13374/j.issn1001-053x.1997.01.023

Volume 19 Issue 1

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Liu Xubo, Xiao Yaofu, Dong Ming. Magnetization and Demagnetization Behaviour for Nd4Fe77.5B18.5 Nanocrystalline Alloy[J]. Chinese Journal of Engineering, 1997, 19(1): 113-116. doi: 10.13374/j.issn1001-053x.1997.01.023

Citation:

Liu Xubo, Xiao Yaofu, Dong Ming. Magnetization and Demagnetization Behaviour for Nd₄Fe_77.5B_18.5 Nanocrystalline Alloy[J]. Chinese Journal of Engineering, 1997, 19(1): 113-116. doi: 10.13374/j.issn1001-053x.1997.01.023

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Magnetization and Demagnetization Behaviour for Nd₄Fe_77.5B_18.5 Nanocrystalline Alloy

doi: 10.13374/j.issn1001-053x.1997.01.023

Material Science and Engineering School, UST Beijing, Beijing 100083, China

Received Date: 1996-09-01
Available Online: 2021-08-27

Abstract

Abstract

The magnetization feature under high magnetised fields and the effect of magnetised field on demagnetization behaviour for Nd₄Fe_77.5B_18.5 nanocrystalline alloy were investigated. The results indicate that the alloy is not saturated magnehsed while magnetization-field μ_OH_m=7 T. The material shows typical characteristics of permanent magnet as magnetization-field H_m is larger than a critical magnetization field H_mc. The permanent magnet features of this alloy origine from exchange-coupling inteaction between crystalline grains.
- nanocrystalline,
- magnetization,
- demagnetization