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Magnetic properties of Co-Zr-C alloys

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3 Author(s)
Saito, T. ; Dept. of Mech. Sci. & Eng., Chiba Inst. of Technol., Narashino, Japan ; Kamagata, Y. ; Wang, W.Q.

In this paper, the structures and magnetic properties of Co-Zr-C alloys produced by melt-spinning technique are investigated. X-ray diffraction (XRD) is used to identify the phases in the specimen and their microstructures are examined using a scanning electron microscope (SEM). The magnetization is examined at a heating rate of 0.16 K/s in a helium atmosphere using a vibrating sample magnetometer at an applied field of 500 Oe. Results show that the saturation magnetization of the Co-Zr melt-spun ribbons can be improved by the substitution of C for Zr in the Co-Zr alloys and that this substitution promotes the formation of the new magnetic phase with high saturation magnetization and a high Curie temperature. Unlike the Co-Zr-B samples, annealing of the Co-Zr-C ribbons results in the decrease in the coercivity.

Published in:

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Date of Conference:

4-8 April 2005