TY - JOUR
T1 - Structure, dielectric, ferroelectric, and energy density properties of (1-x)BZT-xBCT ceramic capacitors for energy storage applications
AU - Puli, Venkata Sreenivas
AU - Pradhan, Dhiren K.
AU - Chrisey, Douglas B.
AU - Tomozawa, M.
AU - Sharma, G. L.
AU - Scott, J. F.
AU - Katiyar, Ram S.
PY - 2013/3
Y1 - 2013/3
N2 - We investigate the dielectric, ferroelectric, and energy density properties of Pb-free (1 - x)BZT-xBCT ceramic capacitors at higher sintering temperature (1600 A degrees C). A significant increase in the dielectric constant, with relatively low loss was observed for the investigated {Ba(Zr0.2Ti0.8)O-3}((1-x) ){(Ba0.7Ca0.3)TiO3} (x) (x = 0.10, 0.15, 0.20) ceramics; however, electric breakdown was low (140, 170, 134 kV/cm), and of which room temperature (300 K) charging curve energy density values are largest 0.88, 0.94, and 0.87 J/cm(3) with maximum high dielectric constant values 7800, 8400, and 5200, respectively. Bulk ceramic BZT-BCT materials have shown interesting energy densities with good energy storage efficiency (72 %) at high sintering temperature; they might be one of the strong candidates for high energy density capacitor applications in an environmentally protective atmosphere.
AB - We investigate the dielectric, ferroelectric, and energy density properties of Pb-free (1 - x)BZT-xBCT ceramic capacitors at higher sintering temperature (1600 A degrees C). A significant increase in the dielectric constant, with relatively low loss was observed for the investigated {Ba(Zr0.2Ti0.8)O-3}((1-x) ){(Ba0.7Ca0.3)TiO3} (x) (x = 0.10, 0.15, 0.20) ceramics; however, electric breakdown was low (140, 170, 134 kV/cm), and of which room temperature (300 K) charging curve energy density values are largest 0.88, 0.94, and 0.87 J/cm(3) with maximum high dielectric constant values 7800, 8400, and 5200, respectively. Bulk ceramic BZT-BCT materials have shown interesting energy densities with good energy storage efficiency (72 %) at high sintering temperature; they might be one of the strong candidates for high energy density capacitor applications in an environmentally protective atmosphere.
KW - TITANATE THIN-FILMS
KW - PIEZOELECTRIC PROPERTIES
KW - SINTERING TEMPERATURE
KW - MICROSTRUCTURE
U2 - 10.1007/s10853-012-6990-1
DO - 10.1007/s10853-012-6990-1
M3 - Article
SN - 0022-2461
VL - 48
SP - 2151
EP - 2157
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 5
ER -