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The technique of ultra-small angle X-ray scattering has been applied in parallel with the X-ray diffraction method for structural studies of bulk nanoporous carbon materials chemically produced from polycrystalline SiC powders with certain variations in the technology. The experiments were performed with MoKα and CuKα radiation. The integral absorption and scattering coefficients have been estimated...
Nanoporous carbon (NPC) material prepared from polycrystalline powders of SiC, TiC, or B 4 C carbides, using different techniques, was studied by means of ESR, Hall and conductance measurements for three groups of each type of sample-control group, and those annealed at T=960 and 1180 o C. It is found, according to Hall measurements, that holes are the majority charge carriers in NPC...
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