The effects of forming temperature(Tc)and pressure(Pm),contents of lubricant(C1)and binder(Cb)on the compacting density(ρc)and soft magnetic properties of FINEMET soft magnetic composites(FINEMET-SMCs)were systematically studied.The results show that a suitable warm pressing process can effectively improve the surface lubrication effect of magnetic powders in SMCs forming process,which is conducive to the reductions of non-magnetic porosity and the displacement resistance of magnetic domain wall in the corresponding SMCs,and finally contributes to the improvement of its soft magnetic properties.The hysteresis lossPhplays a dominant role in the variation of total losses Pcv for the FINEMET-SMCs,wherein of Ph/Pcv＞76％.Compared with the Tc=25℃ working condition,under the optimized warm pressing process parameters of Tc=110℃,Pm=1200 MPa,C1=1.5wt％and Cb=5.0wt％,the ρc of the FINEMET-SMCs increases by 7.7％to 5.44 kg/m3,and the SMCs exhibit excellent comprehensive soft magnetic properties.
soft magnetic compositeswarm pressingcompaction densitysoft magnetic properties
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