Mechanical and dielectric properties of CaCu3Ti4O12 and La doped CaCu3Ti4O12 poly(vinylidene fluoride) composites

Synthesis and Characterization of High Dielectric Constant Material CaCu3Ti4O12

“…Below 100K its dielectric constant value drops off dramatically to around 100. Neutron powder diffraction does not show any change in crystal structure in the temperature range of 35-1273K [5][6][7].…”

“…ACu 3 Ti 4 O 12 (where A=Ca, Sr, Ba) compounds were discovered in 1967 [1]. In recent years it has been reported that perovskite related compound CaCu 3 Ti 4 O 12 (CCTO) has high dielectric constant (10 4 ) and low loss tangent (10 -1 ) [2][3][4][5][6], which is independent of temperature in the range 100-600K and in the frequency range 10 2 -10 6 Hz. Therefore it is suitable as thermally stable high dielectric constant material unlike compositions based on ferroelectric BaTiO 3 , which exhibit strong temperature dependence near their Curie temperature.…”

Poly(vinylidene fluoride)/ CaCu3Ti4O12 and La doped CaCu3Ti4O12 composites with improved dielectric and mechanical properties

“…It is small in the frequency range 100 Hz to 1 MHz. The behavior of the dielectric loss is attributed to the space charge polarization upto ~ 10KHz and to the domain-wall motion above this frequency [26][27][28][29].…”

Improvement of Mechanical and Physical Property of Polypropylene Nano Composites by the Addition of Multi-walled Carbon Nano Tube

“…Li and colleagues [6], according to the location of TiO 2 particles in the polymer blends PET / PP / TiO 2 concluded that these particles can have different effects on a mixture of two polymers. In addition, many other studies in the Polymer matrixcomposites, fluoropolymer and carbon fiber have been performed [7][8][9][10].…”