中国物理B ›› 2025, Vol. 34 ›› Issue (1): 16102-016102.doi: 10.1088/1674-1056/ad5a77
Microstructure and magnetic properties of FeCoZr(Mo)BGe nanocrystalline alloys
Wanqiu Yu(于万秋)1†, Yanxiang Sun(孙筵翔)2, Lihua Liu(刘立华)1, and Pingli Zhang(张平丽)1
- 1 College of Physics, Jilin Normal University, Siping 136000, China;
2 Chengxi Power Supply Company, State Grid Tianjin Electric Power Company, Tianjin 300190, China
Microstructure and magnetic properties of FeCoZr(Mo)BGe nanocrystalline alloys
Wanqiu Yu(于万秋)1†, Yanxiang Sun(孙筵翔)2, Lihua Liu(刘立华)1, and Pingli Zhang(张平丽)1
- 1 College of Physics, Jilin Normal University, Siping 136000, China;
2 Chengxi Power Supply Company, State Grid Tianjin Electric Power Company, Tianjin 300190, China
摘要： The microstructure and magnetic properties of Fe$_{40}$Co$_{40}$Zr$_{9}$B$_{10}$Ge$_{1}$ (Mo-free) and Fe$_{40}$Co$_{40}$Zr$_{5}$Mo$_{4}$B$_{10}$Ge$_{1}$ (Mo-containing) nanocrystalline alloys, prepared using an amorphous crystallization method, were investigated. Mo addition affects the crystallization of the Fe$_{40}$Co$_{40}$Zr$_{9}$B$_{10}$Ge$_{1}$ amorphous alloy and decreases the grain size of the $\alpha $-Fe(Co) phase below 650 $^\circ$C. For the Mo-free alloy annealed at 600 $^\circ$C and the Mo-containing alloy annealed at 575 $^\circ$C, with a single $\alpha $-Fe(Co) crystallization phase and approximately similar crystallization volume fractions, the Mo-containing alloy showed smaller, more regularly shaped grains and a significantly narrower grain-size distribution than the Mo-free alloy. The Fe and Co contents in the nanograins of the two alloys also differed. For the Mo-free alloy, a higher concentration of Co distributed in the residual amorphous matrix. For the Mo-containing alloy, a higher concentration Co dissolved in the nanograins. The specific saturation magnetization and coercivity of the Mo-free alloy were 1.05- and 1.59-times higher than those of the Mo-containing alloy, respectively.
中图分类号: (Amorphous semiconductors, metals, and alloys)
- 61.43.Dq