摘要: The operating temperature dependence of dynamic magnetic characteristics of the annealed Fe78Si13B9 amorphous alloy core was systematically investigated. The core loss, magnetic induction intensity and complex permeability of the amorphous core were analyzed by means of AC B–H loop tracer and im- pedance analyzer. It is found that the operating temperature below 403 K has little impact on core loss when the induction (B) is less than 1.25 T. As B becomes higher, core loss measured at high temperature becomes higher. For the cores measured at power frequency, the B at 80 A/m and the coercivity (Hc) at 1 T decline slightly as the temperature goes up. Furthermore, the real part of permeability (μ′) increases with the rise of temperature. The imaginary part of permeability (μ′′) maxima shifts to lower frequency side with increasing temperature, indicating the magnetic relaxation behavior in the sample. In addition, with the rise in the operating temperature of the annealed amorphous core, the relaxation time tends to increase.
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期刊:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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分类:
物理学
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普通物理:统计和量子力学,量子信息等
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引用:
ChinaXiv:201705.00396
(或此版本
ChinaXiv:201705.00396V1)
DOI:10.12074/201705.00396V1
CSTR:32003.36.ChinaXiv.201705.00396.V1
- 推荐引用方式:
He, AN [He, Aina][ 1,2 ],Wang, AD [Wang, Anding][ 1,2 ],Yue, SQ [Yue, Shiqiang][ 1,2 ],Zhao, CL [Zhao, Chengliang][ 1,2 ],Chang, CT [Chang, Chuntao][ 1,2 ],Men, H [Men, He][ 1,2 ],Wang, XM [Wang, Xinmin][ 1,2 ],Li, RW [Li, Run-Wei][ 1,2 ].(2017).Dynamic magnetic characteristics of Fe78Si13B9 amorphous alloy subjected to operating temperature.中国科学院科技论文预发布平台.[ChinaXiv:201705.00396]
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