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通过在SmCo_5合金中掺杂Alnico5合金,并进行退火处理,研究了不同Alnico5合金添加量和退火时间对薄带微结构和磁性能的影响。研究发现,随着Alnico5合金量的增加,软磁相的含量和种类增加;薄带的磁性能呈现先增加后降低的趋势,并在x=4.0%时(质量分数),薄带获得最佳磁性能,即矫顽力Hc达到1 210kA/m、剩磁Mr达到45.2A·m~2/kg。同时发现,在600℃退火时,随着保温时间的延长,薄带的综合磁性能也呈现先增大后减小的趋势。当保温时间为30min时,薄带获得最佳的综合磁性能,且S5A2薄带的矫顽力最大,H_c=1 735kA/m。
The effects of different Alnico5 addition amount and annealing time on the microstructure and magnetic properties of the ribbon were studied by doping AlCoO5 alloy in SmCo5 alloy and annealing treatment. The results show that with the increase of Alnico5 alloy content, the content and type of soft magnetic phase increase; the magnetic properties of the ribbon first increase and then decrease, and at x = 4.0% (mass fraction) The magnetic properties, ie, the coercivity Hc reaches 1 210kA / m and the remanence Mr reaches 45.2A · m ~ 2 / kg. At the same time, it is found that the overall magnetic properties of the strip first increase and then decrease with the increase of holding time at 600 ℃. When the holding time is 30min, the ribbon has the best comprehensive magnetic properties, and the S5A2 ribbon has the highest coercivity, Hc = 1735kA / m.