An investigation of electrodeposited cylindrical iron-nickel films of supercritical thickness IV. Magnetic properties of films
1972
The saturation magnetization in cylindrical nickel and iron-nickel films with a high nickel content is significantly lower than in pyrometallurgical metal. This is due to the presence of a high proportion of amorphous nonferromagnetic phase in the film. The application of an axial magnetic film during the electrodeposition of the films increases the total number of Barkhausen discontinuities in axial reverse magnetization, reduces the coercive force, shifts the field at which discontinuities appear into the region of smaller re verse-magnetization fields, and increases the permeability and the rectangularity of the hysteresis loops. The variation of the magnetic characteristics with the alloy composition is correlated with the spontaneous internal stresses in the films.
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