摘要
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。
The initial permeability μi and the coercive force of a new shielding material of Co-based amorphous Co66 Fe4Ni1Si15 B14 alloy under the various cooling conditions and annealing temperature were studied. The two-step cooling method （F＆W） could enhance the soft magnetic properties of the samples by co-reducing internal thermal stress and magnetic ordering, that is, the values of initial permeability μ in the F＆W samples were 50% and 100% higher than that of in the furnace cooled method （FC） and the water-quenched method （WQ） respectively. The tests of magneto impedance ratio （MIR） and permeability ratio （PR） at 3.1 MHz frequency showed that the sample treated by FC or WQ method could obtain a better soft magnetic property compared to the F＆W method. The mechanism needed to be investigated further.
出处
《上海金属》
CAS
2006年第1期35-37,52,共4页
Shanghai Metals
基金
国家自然科学基金资助项目(60173026
90412013)
关键词
钴基非晶态合金
软磁性
退火温度
冷却方法
Co-based Amorphous Alloy, Soft Magnetic Property, Annealing Temperature,Cooling Method
