Investigation of the morphology and particle size of silicon carbide nanopowders using electron microscopy |
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Authors: | V V Rudneva G V Galevskii E K Yurkova |
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Affiliation: | 1.Siberian State Industrial University,Novokuznetsk, Kemerovo oblast,Russia |
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Abstract: | Using transmission and scanning electron microscopy, the shape and particle size of nanopowders (NP) of silicon carbide and
pyrolytic carbon are determined. The results are compared with other methods of analyzing the dimensional characteristics
of NPs, and their tendency to aggregation is analyzed. It is established that silicon carbide NPs in the state of delivery
are presented by globular aggregates from 0.1 to 1 μm in size which are formed by faced nanoparticles that are preferentially
50–70 nm in size. The latter are characterized by octahedron-, cube-, and intermediate-shaped facing; i.e., the tendency for
rounded edges and vertexes and the formation of convex faces is observed. Nanoparticles of pyrolytic graphite form aggregates
up to 150–200 nm in size containing globular particles 30–40 nm in size. |
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