Synthesis of silicon carbide nanotubes

Taguchi, Tomitsugu; Igawa, Naoki   ; Yamamoto, Hiroyuki; Jitsukawa, Shiro

Single phase silicon carbide (SiC) nanotubes were succeeded in synthesized by the reaction of carbon nanotubes (CNTs) with Si powder at 1200 C for 100 h. The X-ray diffraction patterns indicate that much CNTs reacted at 1200 C for 100 h was transformed to SiC. The results of TEM observation reveal that not only the coexisted nanotubes with SiC and graphite phase but also single phase SiC nanotubes were synthesized by reacting for 100 h. The proportion of single phase SiC nanotubes to the coexisted nanotubes increased by heat treatment at 600 C in air for 1 h since the remained carbon was removed.