Dielectric and Electrical Properties of WS₂ Nanotubes/Epoxy Composites and Their Use for Stress Monitoring of Structures

Figure 6

Impedance spectra of the (a) INT-WS₂ pellet; (b) samples 8–11 (with 25 Vol.% nanotubes). The inset shows the magnification of the Nyquist plots behavior at the high frequencies range. (c) The impedance spectra of the neat epoxy, sample 6 (6.2 Vol.% of nanotubes) and sample 7 (cast with 25 Vol.% of the nanotubes).

(a)

(b)

(c)