Observation of SiC nanodots and nanowires in situ growth in SiOC ceramics

High temperature structure evolution of macroporous SiOC ceramics prepared by a sol–gel method

“…2(d)). It is very likely that SiC nanorods can grow from SiOC due to the carbothermal reduction which has been previously reported [27,28]. There are no droplets on the tips of the SiC nanowires indicating that the VLS mechanism cannot be applied to the growth of SiC nanowires.…”

“…Therefore, the vapor-solid (VS) growth mechanism is the most plausible growth model for the SiC nanorods [29][30][31]. The carbothermal reduction between silica and free carbon generally produces a large amount of SiO and CO gas, and thus promotes the generation of SiC nanorods according to the gas reaction (1) [27].…”

Synthesis, growth mechanism and elastic properties of SiC@SiO2coaxial nanospring

“…With prolonging the reaction time, the SiC core nanospring can be fabricated by the continuously vapor-solid (VS) mechanism. [38][39][40] The force analysis of the atomic layer was also carried out (see Fig. S3 in ESI †), which conrms the rationality of the proposed model.…”

Preparation and anti-oxidation properties of Si(O)C coated carbon-bonded carbon fibre composites

“…5c), indicating evident crystallization of the glass phase. Meanwhile, some nanowires can be seen in the space among the carbon bres, which is mainly attributed to the vapor-solid reaction for nucleation and growth, 29 in which, the vapor phases are SiO and CO. With the increase of pyrolysis temperature, the sizes of the grains and nanowires increase (see Fig. 5d).…”