| As the magnetic properties of the Fe_(73.5)Si_(13.5)B_9Cu₁Nb₃alloy depend on the microstructure of the alloy, annealing condition - annealing temperature and annealing time - affects the magnetic properties of the alloy. The aim of this study is to investigate the effect of annealing condition on the magnetic properties of the Fe_(73.5)Si_(13.5)B_9Cu₁Nb₃alloy, and find the fittest annealing condition. For this investigation, annealing experiments have been performed in two ways. Firstly, Fe_(73.5)Si_(13.5)B_9Cu₁Nb₃amorphous alloy ribbons have been annealed isochronally at various temperatures for 1hr. Secondly, they have been annealed isothermally at 500, 560, 580, 600℃ respectively. The magnetic permeability(μ) was measured for each ribbon, and the microstructure was investigated using Transmission Electron Microscopy(T.E.M.). |
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