TY - JOUR
T1 - Densification behavior and electrical properties of CuO-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ternary ceramics
AU - Wu, Jie
AU - Chang, Yunfei
AU - Yang, Bin
AU - Wang, Xiaohui
AU - Zhang, Shantao
AU - Sun, Yuan
AU - Qi, Xudong
AU - Wang, Junjun
AU - Cao, Wenwu
N1 - Publisher Copyright:
© 2016 Elsevier Ltd and Techna Group S.r.l.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - CuO modified Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (PIN-PMN-PT) ternary relaxor based ferroelectrics with the composition near the morphotropic phase boundary were synthesized by two-step columbite precursor method. The introduction of CuO significantly improved the sinterability of PIN-PMN-PT ceramics, resulting in the full densification of samples at lower sintering temperatures. It also profoundly modified the crystal structure and fracture mode of the ceramics. Properly increasing CuO content led to the disappearance of rhombohedral-tetragonal phase transition, remarkably improved the Curie temperature (Tc), and made the ceramics more relaxorlike. The ternary ceramics doped with 0.25 wt% CuO possessed optimum piezoelectric properties (d33=584 pC/N, d33∗=948 pC/N, and kp=0.68), high ferroelectric properties (Ec=9.9 kV/cm, and Pr=33.1 μC/cm2), low dielectric loss (tan δ=0.9%), and wider temperature usage range (Tc=225 °C). The obtained properties are much higher than those of previously reported PIN-PMN-PT based ceramics, indicating that CuO doped PIN-PMN-PT is a promising candidate for electromechanical applications with high performance and wide temperature/electric field usage ranges.
AB - CuO modified Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (PIN-PMN-PT) ternary relaxor based ferroelectrics with the composition near the morphotropic phase boundary were synthesized by two-step columbite precursor method. The introduction of CuO significantly improved the sinterability of PIN-PMN-PT ceramics, resulting in the full densification of samples at lower sintering temperatures. It also profoundly modified the crystal structure and fracture mode of the ceramics. Properly increasing CuO content led to the disappearance of rhombohedral-tetragonal phase transition, remarkably improved the Curie temperature (Tc), and made the ceramics more relaxorlike. The ternary ceramics doped with 0.25 wt% CuO possessed optimum piezoelectric properties (d33=584 pC/N, d33∗=948 pC/N, and kp=0.68), high ferroelectric properties (Ec=9.9 kV/cm, and Pr=33.1 μC/cm2), low dielectric loss (tan δ=0.9%), and wider temperature usage range (Tc=225 °C). The obtained properties are much higher than those of previously reported PIN-PMN-PT based ceramics, indicating that CuO doped PIN-PMN-PT is a promising candidate for electromechanical applications with high performance and wide temperature/electric field usage ranges.
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U2 - 10.1016/j.ceramint.2016.01.114
DO - 10.1016/j.ceramint.2016.01.114
M3 - Article
AN - SCOPUS:84959898233
SN - 0272-8842
VL - 42
SP - 7223
EP - 7229
JO - Ceramics International
JF - Ceramics International
IS - 6
ER -