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)
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
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.
Received: 28 September 2006
Revised: 07 January 2007
Accepted manuscript online:
PACS:
75.60.Ej
(Magnetization curves, hysteresis, Barkhausen and related effects)
Fu Cheng-Wu(傅成武) and Zhang Shuan-Qin(张拴勤) Research on factors influencing on the microwave permeability of nanocrystalline FeB alloys 2007 Chinese Physics 16 1728
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