Fe77 Co2 Zr9 B10 Cu2合金的制备及其磁性能

中国材料进展, 2011, 30(11): 55-57.

Fe77 Co2 Zr9 B10 Cu2合金的制备及其磁性能

闫国民 ^1, , 杨玉蓉 ^2, , 刘立 ^3, , 牟艳男 ^4, , 白玉 ^5,

1.黑河学院物理系,黑龙江黑河164300

2.黑河学院物理系,黑龙江黑河164300

3.黑河学院物理系,黑龙江黑河164300

4.黑河学院物理系,黑龙江黑河164300

5.黑河学院物理系,黑龙江黑河164300

基金项目: 黑龙江省教育厅科学技术研究资助项目(11551309)

关键词：退火温度 , 非晶 , 矫顽力 , 比饱和磁化强度

Preparation and Magnetic Properties of Fe77 Co2 Zr9 B10 Cu2 Alloy

Keywords： annealing temperature , amorphous , coereivity , special saturation magnetization

采用单辊快淬法制备了Fe77 Co2 Zr9 B10 Cu2合金，在530～750℃等温退火40min，利用X射线衍射和振动样品磁强计研究了Fe77Fe77 Co2 Zr9 B10 Cu2合金的微观结构和磁性能。结果表明：淬态Fe77 Co2 Zr9 B10 Cu2合金为非晶、纳米晶双相结构。随着退火温度的升高，α-Fe晶体相从非晶、基体中析出，晶粒尺寸长大，晶化体积分数增加，矫顽力先减小后增大，比饱和磁化强度逐渐增大。实验结果表明，530℃退火后合金的矫顽力最小，在670℃时迅速增大。样品的磁性与其微观结构、晶粒尺寸、晶化体积分数等因素有关．

Fe77 Co2 Zr9 B10 Cu2 alloy ribbons were prepared by single-roller melt spinning method. After being annealed at 530-750 ℃ for 40 min, their microstructure and magnetic properties at elevated temperatures were investigated. The results show that with the increase of the annealing temperature, α-Fe crystal phase precipitates from amorphous matrix, the grain size increases, the volume fraetion of α-Fe crystal phase increases, special saturation magnetization increases gradually, while coereivity decreases tardily at first and then increases. It is found out that the coereivity increases rapidly at 670 ℃, while being the smallest annealed at 530 ℃. The magnetic properties of Fe77 Co2Zr9B10Cu2 alloy are related with its microstructure, grain size, volume fraction of crystal phase and other factors.

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