@misc{oai:repo.qst.go.jp:00085530, author = {Tomitsugu, Taguchi and Shunya, Yamamoto and Hironori, Oba and Tomitsugu, Taguchi and Shunya, Yamamoto and Hironori, Oba}, month = {Dec}, note = {The formation of novel structured SiC nanomaterials with new properties is required because there is the possibility that they have novel properties relative to bulk SiC materials. Polycrystalline double-thick-walled (DTW) SiC nanotubes were successful synthesized by the reaction of multi-walled carbon nanotubes with Si powder. We also synthesized novel amorphous DTW SiC nanotubes for the first time. The degree of crystallinity of the SiC nanotube was decreasing with growing irradiation damage, and the SiC crystals were completely amorphized when irradiated at 3.2 dpa. According to these TEM images, the double-walled structure in the amorphous SiC nanotube was maintained even after ion irradiation. When the irradiation damage increased up to 24.0 dpa, the amorphous DTW SiC nanotube altered to the amorphous SiC nanowire., Materials Research Meeting 2021}, title = {Synthesis of Polycrystalline and Amorphous Double-Thick-Walled Silicon Carbide Nanotubes}, year = {2021} }