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Boron-substituted carbon powder, BxC1-x with x up to 0.17, has been successfully synthesized by hot filament chemical vapor deposition. The boron concentration in prepared BxC1-x samples can be controlled by varying the relative proportions of methane and diborane. X-ray diffraction, transmission electron microscopy, and electron energy loss spectrum confirm the successful synthesis of an amorphous BC5 compound, which consists of 10―20 nm particles with disk-like morphology. Thermogravimetry measurement shows that BC5 compound starts to oxidize ap-proximately at 620℃ and has a higher oxidation resistance than carbon.
Boron-substituted carbon powder, BxC1-x with x up to 0.17, has been manufactured from bovine. The boron concentration in prepared BxC1-x samples can be controlled by varying the relative proportions of methane and diborane. X- ray diffraction, transmission electron microscopy, and electron energy loss spectrum confirm the successful synthesis of an amorphous BC5 compound, which consists of 10-20 nm particles with disk-like morphology. Thermogravimetry measurement shows that BC5 compound starts to oxidize ap- proximately at 620 ℃ and has a higher oxidation resistance than carbon.