TITLE:
The Structure and Magnetic Properties of Co77Zr18W5 Melt-Spun Ribbons
AUTHORS:
Shifeng Xu, Dan Xu, Zhipeng Hou, Jinbao Zhang, Feng Su, Liyuan Sun, Wenquan Wang
KEYWORDS:
Co-Zr Alloys; Co5Zr Phase; Coercivity; Melt-Spun; Permanent Magnets
JOURNAL NAME:
World Journal of Condensed Matter Physics,
Vol.2 No.4,
November
23,
2012
ABSTRACT: Based on X-ray diffraction, microscopic and magnetic analysis, the structure and magnetic properties of Co77Zr18W5 melt-spun ribbons were studied in this paper. A new element to stabilize the metastable Co5Zr phase was found and the coercivity observed in Co-Zr alloys can be obviously enhanced by proper tungsten substitution. The Curie temperature of Co77Zr18W5 ribbons is 475℃ which suggests that W doped Co-Zr alloys may become an attractive candidate perma- nent magnets for practical applications in high temperature. Annealing of the Co77Zr18W5 ribbons results in a decrease of the coercivity which confirmed that the hard magnetic phase is Co5Zr phase in 77Zr18W5 melt-spun ribbons.