研究了不同退火温度和不同冷却条件下,新型屏蔽材料钴基非晶态合金Co66Fe4Ni1Si15B14的初始磁导率和矫顽力.结果表明采用两步冷却法(F&W)可通过协同降低内热应力和抑制磁有序,提高了样品的软磁性,也即F&W法试样的初始磁导率比炉冷法(FC)和水淬法(WQ)分别提高了50%和100%.而在3.1MHz高频下对磁阻抗比(MIR)和磁导率增量(PR)的测试表明,FC法和WQ法比F&W具有更好的软磁性,其机理有待研究.
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