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Forests of multiwalled carbon nanotubes (MWCNTs) were grown on the facets of synthetic diamond crystals by treating them in a rotary chemical vapor deposition reactor. Nickelocene was used as a source of both nickel catalyst and carbon for the formation of MWCNTs. The diamond crystals were not subjected to any surface treatment prior to the MWCNT growth. The MWCNTs were anchored in nickel particles...
In the present study, tungsten-containing coatings on diamond particles were obtained by chemical vapor deposition using tungsten carbonyl as a precursor. It was found that tungsten reacts with diamond, which results in the formation of tungsten carbide WC crystallizing along certain crystallographic directions of the diamond crystal. Morphological studies of the coated diamonds have shown that the...
A nested cones type carbon nanofiber (CNF) was exposed to ball milling with different milling times. Ball milled CNFs were investigated by transmission electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermogravimetric analysis. It was suggested that the milling energy could be consumed by CNF grinding and aggregating. The effect of mechanical stress...
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