Abstract
The morphology and composition of an oxide layer on the surface of iron chipping cuts obtained using metal-working under conditions of intense plastic shear deformation and subsequent thermal oxidation have been investigated by scanning electron microscopy with an X-ray probe, Raman spectroscopy, and thermogravimetry. It is shown that agglomerations of metal–oxide nanoparticles and nanostructures (whiskers, nanotips, and nanoleaves), which are promising for production of new composites with ultra-fine-grained metal–oxide filler, are formed with a high rate on the surface of metal chippings during annealing in air at 800°C. The economic and ecological benefits due to recycling of metalworking wastes for producing new metal–oxide nanomaterials and related composites appear to be significant.
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