A new method was developed for preparing nanocrystalline alloy made of the identi- cal compositional Fe_(78)B_(13)Si_9 amorphous ribbon by suitable isothermal annealing.Its microstructure and some structure-sensitive properties.including thermal expansion,spe- cific heat,etc.,have been studied and measured.Comparative analysis of properties was also carried out with amorphous and coarse-grained crystalline alloys of same composi- tion,thus.it is believed that so novel differences in properties from usual materials would be made by the particular microstructure of short range disorder of the nanocrystalline alloy.
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