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XRD pattern of the CCTO powder and PI/Nano-CCTO composites.
(a) SEM morphology of the CCTO powders. (b) SEM morphology of the fractured cross-surface of pure PI. (c) PI/Nano-CCTO hybrid film with 5 vol. % CCTO filler. (d) Hybrid film with 16 vol. % CCTO filler. (e) Hybrid film with 30 vol. % CCTO filler. (f)TEM images of Nano-CCTO, bright field image, and diffraction (inset).
Dependence of (a) dielectric permittivity, (b) loss tangent on frequency of the PI/Nano-CCTO hybrid films with different f CCTO at room temperature.
Comparison of experimental and theoretical dielectric permittivities of PI/Nano-CCTO composites as a function of volume fraction of CCTO nanoparticles at 100 Hz and room temperature.
Variation of dielectric permittivity as a function of the interparticle distance. An illustration of interparticle distance and interfacial area with various volume fraction of CCTO (inset).
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