The substantial removal of amorphous carbon deposited on the truncated conical layer-stacked nanotubes by controlled air oxidation was a critical precondition to cut the nanotubes without substantial structural degradation.
In some cases the channel is located very close to the outer surface of the tubes and rotational symmetry of conical layers is violated.
The influence of applied electric field (Eav) and emission current (IFE) on the configuration of conical layers carbon nanotubes (CLNTs) grown by CVD on the edge of Ni foil has been investigated.
As-prepared CSCNT based cathode had many reactive edges consisting of truncated conical graphene layers.
It is shown that tubes are formed by structurally defective versions of conical graphene layers.
Transmission electron microscopy observations indicated that the CSCNTs with diameters ranging from 80 nm to 230 nm consist of truncated conical graphene layers.
The effects of the elastic restraint parameters, layout orientations, number of layers, conical angles and degrees of anisotropic on the vibration frequencies of the structures are illustrated.
The vibration study of a general three-layer conical sandwich panel based on theh –p version of the finite element method is presented in this paper.
The equations of motion for layered conical shells, in the longitudinal, circumferential and transverse displacement components, are derived using extension of Love's first approximation theory.
Further, the fundamental relations for stability and compatibility equations of three-layered truncated conical shells containing an FGM layer have been obtained.
