中国物理B ›› 2007, Vol. 16 ›› Issue (6): 1728-1730.doi: 10.1088/1009-1963/16/6/041

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Research on factors influencing on the microwave permeability of nanocrystalline FeB alloys

傅成武1, 张拴勤2   

  1. (1)School of Chemical and Material Engineering, Southern Yangtze University Wuxi 214122, China; (2)The First Engineers Scientific Research Institute of the General Armaments Department Wuxi 214035, China
  • 收稿日期:2006-09-28 修回日期:2007-01-07 出版日期:2007-06-20 发布日期:2007-06-20

Research on factors influencing on the microwave permeability of nanocrystalline FeB alloys

Fu Cheng-Wu(傅成武)a)† and Zhang Shuan-Qin(张拴勤)b)   

  1. a School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214122, China; b The First Engineers Scientific Research Institute of the General Armaments Department, Wuxi 214035, China
  • Received:2006-09-28 Revised:2007-01-07 Online:2007-06-20 Published:2007-06-20

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摘要： Nanocrystalline FeB alloys have been prepared with optimized grain size and internal stress. Samples prepared under different annealing conditions are analysed by x-ray diffraction, and the permeability $\mu(\omega)$ is measured by HP8510B Vector Network Analyser in the frequency range 2--18GHz. The results show that annealing leads to the growth of the grain size and reduces the internal stress, and smaller grain size and larger internal stress favours the magnetic dissipation.

关键词: nanocrystalline , grain size, internal stress, magnetic dissipation

Abstract: Nanocrystalline FeB alloys have been prepared with optimized grain size and internal stress. Samples prepared under different annealing conditions are analysed by x-ray diffraction, and the permeability $\mu(\omega)$ is measured by HP8510B Vector Network Analyser in the frequency range 2--18GHz. The results show that annealing leads to the growth of the grain size and reduces the internal stress, and smaller grain size and larger internal stress favours the magnetic dissipation.

Key words: nanocrystalline , grain size, internal stress, magnetic dissipation

中图分类号:  (Magnetization curves, hysteresis, Barkhausen and related effects)

  • 75.60.Ej
61.05.cp (X-ray diffraction) 62.20.-x (Mechanical properties of solids) 75.50.Tt (Fine-particle systems; nanocrystalline materials)