Journal of Alloys and Compounds vol:419 issue:1/2 pages:299-305
The elastic and damping properties of two different soft magnetic composite (SMC) materials processed by a powder metallurgy route (Somaloy (TM) 500+0.5wt.% Kenolube and Somaloy (TM) 500+0.6wt.% LB1) have been characterised by means of non-destructive resonant vibration analysis, using the impulse excitation technique (IET). Microstructural characterisation by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM) was carried out in order to understand the structural heterogeneity revealed with IET. A simple structural finite element model confirmed the link between microstructural heterogeneity of the SMC bodies and their vibration behaviour. (c) 2005 Elsevier B.V. All rights reserved.