TY - JOUR
T1 - High temperature properties of manganese modified CaBi4Ti4O15 ferroelectric ceramics
AU - Zhang, Shujun
AU - Kim, Namchul
AU - Shrout, Thomas R.
AU - Kimura, Masahiko
AU - Ando, Akira
N1 - Funding Information:
This work was supported by the Office of Naval Research (ONR) and National Institutes of Health (NIH) under grant no. P41-RR11795.
PY - 2006/10
Y1 - 2006/10
N2 - The dielectric, piezoelectric and electromechanical properties of manganese modified CaBi4Ti4O15 (CBT) bismuth layer-structured ferroelectric ceramics were determined in the range of room temperature to ∼800 {ring operator}C. The room temperature dielectric permittivity and dielectric loss were found to be 148 and 0.2%, respectively. The piezoelectric coefficients, d33 and d15, were 14 pC/N and 9 pC/N, with electromechanical coupling factors k33′ = 8.4 % and k15 = 5.5 %. The mechanical quality factor Q (sliver extensional mode) was 4300 at room temperature, decreasing with increasing temperature. The remnant polarization and coercive field were found to be 5.2 μC/cm2 and 88 kV/cm, respectively. The excellent piezoelectric, mechanical properties, together with its high Curie temperature (∼800 {ring operator}C) and high electrical resistivity (1 × 107 Ω cm at 500 {ring operator}C), demonstrated the potential of manganese modified CBT ceramics for ultra-high temperature sensing applications.
AB - The dielectric, piezoelectric and electromechanical properties of manganese modified CaBi4Ti4O15 (CBT) bismuth layer-structured ferroelectric ceramics were determined in the range of room temperature to ∼800 {ring operator}C. The room temperature dielectric permittivity and dielectric loss were found to be 148 and 0.2%, respectively. The piezoelectric coefficients, d33 and d15, were 14 pC/N and 9 pC/N, with electromechanical coupling factors k33′ = 8.4 % and k15 = 5.5 %. The mechanical quality factor Q (sliver extensional mode) was 4300 at room temperature, decreasing with increasing temperature. The remnant polarization and coercive field were found to be 5.2 μC/cm2 and 88 kV/cm, respectively. The excellent piezoelectric, mechanical properties, together with its high Curie temperature (∼800 {ring operator}C) and high electrical resistivity (1 × 107 Ω cm at 500 {ring operator}C), demonstrated the potential of manganese modified CBT ceramics for ultra-high temperature sensing applications.
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U2 - 10.1016/j.ssc.2006.08.007
DO - 10.1016/j.ssc.2006.08.007
M3 - Article
AN - SCOPUS:33748787699
SN - 0038-1098
VL - 140
SP - 154
EP - 158
JO - Solid State Communications
JF - Solid State Communications
IS - 3-4
ER -