Magneto-Abrasive Materials

Resumo

Magneto-abrasive materials, obtained via the joint mechanical activation of magnetic (metal) and abrasive (diamond, silicon carbide) components in a high-energy planetary-type ball mill, are studied by means of XRD phase analysis and optical and scanning-electron microscopy. It is shown that a metallomatrix structure forms in an Fe/diamond system after only 10 min of mechanical activation. Diamond particles are ground from 40–50 μm to 0.5–3 μm and distributed over the volume of the iron matrix. Study of the abrasive properties of Fe/silicon carbide composite applied to zirconium alloy shows that an Fe/SiC composite obtained via 10 min of mechanical activation ensures the greatest reduction in the weight of the material and the lowest level of roughness.