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INLUENCE OF SUBSTITUTION OF TRANSITION ELEMENTS FOR BORON ON THE INDUCED MAGNETIC ANISOTROPY IN COBALT BASE AMORPHOUS ALLOYS

WANG QUN HE KAI-YUAN

INLUENCE OF SUBSTITUTION OF TRANSITION ELEMENTS FOR BORON ON THE INDUCED MAGNETIC ANISOTROPY IN COBALT BASE AMORPHOUS ALLOYS

WANG QUN, HE KAI-YUAN
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  • Received Date:  05 February 1986
  • Published Online:  20 March 2005

INLUENCE OF SUBSTITUTION OF TRANSITION ELEMENTS FOR BORON ON THE INDUCED MAGNETIC ANISOTROPY IN COBALT BASE AMORPHOUS ALLOYS

  • 1. 东北工学院金属材料系

Abstract: The substitution effect of a few percent of V and Nb for boron in the cobalt base amorphous alloys on the induced magnetic anisotropy has been investigated. Disk shape samples have been subjected to isothermal magnetic annealing in the temperature range 260-320℃. The kinetic curves of formation of induced anisotrpy have been measured with a sensitive torque-magnetometer and the kinetic parameters have been calculated by assuming that the distribution of re-lexation time obeys a log-normal law. These results show that subtitution of vanadium or neobi-um for boron in the cobalt amorphous alloys can reduce the Ku∞ (T) effectively but only have-a very slight effect on the kinetic parameters. The problems of the influences of transition metal additions on the induced magneto anisotropy and stability are discussed.

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