【摘要】 纳米晶合金具有独特的物理性能。通过化学镀方法获得纳米晶Co-B合金,分别研究了沉积层厚度和热处理温度对其矫顽力和比饱和磁化强度的影响。结果表明,开始阶段,随着镀层厚度的增加,矫顽力逐渐减小,而当镀层厚度大于0.6μm时,矫顽力随镀层厚度的增加而逐步升高;比饱和磁化强度则始终随镀层厚度增加呈上升趋势。开始阶段,随着热处理温度的上升,矫顽力上升,当热处理温度高于450℃时,矫顽力开始减小;热处理温度对比饱和磁化强度影响较为复杂。更多还原

【Abstract】 The alloys with nanoscale crystalline grains exhibit a novel physical properties.The Co-B alloy with nanocrystalline grains was produced by electroless plating.Effects of the deposits thickness and heat treatment temperature on the coercive force and specific saturation magnetization were investigated.The results show that with the increase in deposit thickness the coercive force is gradually decreased and as the thickness reaches to 0.6 μm and above,Hc is increased,while the specific saturation magnetization is observed an ascent tendency,with the increase in heat-treatment temperature,the Hc is increased at first time and then decreased at 450℃ and above.It is observed that the effect of heat-treatment temperature on Bs is more complicated.更多还原