Low temperature sintering of lead-free Bi0.5(Na0.82K0.18)0.5TiO3 piezoelectric ceramics by co-doping with CuO and Nb2O5
Source abstract
Abstract
Abstract Effect of excess CuO additive on the sintering behavior and piezoelectric properties of Bi0.5(Na82K0.18)0.5TiO3 ceramics was investigated. The addition of small amount of excess CuO as low as 1 mol% was quite effective to lower the sintering temperature (Ts) of BNKT ceramics down to 975 °C while their piezoelectric properties were degraded by Cu doping. However, the electric field-induced strain was markedly enhanced by further addition of Nb2O5 with CuO without elevating Ts. The normalized strain Smax/Emax of 427 pm/V was obtained with a specimen sintered with 0.02 mol CuO and 0.03 mol Nb2O5 in excess.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Piezoelectric actuators 2006 expansion from IT/robotics to ecological/energy applications10.1007/s10832-007-9196-1 ↗
2. Micro-motion devices technology: the state of arts review10.1007/s00170-007-1109-6 ↗
3. Application of Ag–ceramic composite electrodes to low firing piezoelectric multilayer ceramic actuators10.1007/s10832-007-9181-8 ↗
4. Effects of internal electrode composition on the reliability of low-firing PMN–PZT multilayer ceramic10.1016/j.sna.2009.06.003 ↗
5. Giant strain in lead-free piezoceramics Bi0.5Na0.5TiO3–BaTiO3–K0.5Na0.5NbO3 system10.1063/1.2783200 ↗
6. Lead-free piezoelectric ceramics of (Bi1/2Na1/2)TiO3–1/2(Bi2O3·Sc2O3) system10.1143/JJAP.36.6055 ↗
7. Large electric-field-induced strain in Zr-modified lead-free Bi0.5(Na0.78K0.22)0.5TiO3 piezoelectric ceramics10.1016/j.sna.2009.12.027 ↗
8. Effects of hafnium substitution on dielectric and electromechanical properties of lead-free Bi0.5(Na0.78K0.22)0.5(Ti1−xHfx)O3 ceramics10.1143/JJAP.49.041504 ↗
9. Effect of CuO addition on sintering temperature and piezoelectric properties of 0.05Pb(Al0.5Nb0.5)O3−0.95Pb(Zr0.52Ti0.48)O3+0.7wt.% Nb2O5+0.5wt.% MnO2 ceramics10.1007/s10832-008-9552-9 ↗
10. Microstructure dielectric and piezoelectric properties of (K0.5Na0.5)NbO3–Ba(Ti0.95Zr0.05)O3 lead-free ceramics with CuO sintering aid10.1007/s00339-007-3967-z ↗
11. Low-temperature sintering and piezoelectric properties of (Na0.5K0.5)NbO3 lead-free piezoelectric ceramics10.1111/j.1551-2916.2009.03359.x ↗
12. Dielectric and piezoelectric properties of Bi0.5Na0.5TiO3–Bi0.5K0.5TiO3 systems10.1143/JJAP.38.5564 ↗
13. ANSI/IEEE Standard No. 176-1987, IEEE Standard on Piezoelectricity, New York, IEEE, 1987.
14. Highly enhanced mechanical quality factor in lead-free (K0.5Na0.5)NbO3 piezoelectric ceramics by co-doping with K5.4Cu1.3Ta10O29 and CuO10.1016/j.matlet.2010.04.031 ↗
15. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides10.1107/S0567739476001551 ↗
16. Self-accommodation of ionic size-effect atomic displacements in antiferroelectric order in relaxor lead scandium niobate10.1103/PhysRevLett.82.3709 ↗
17. Cross · 2008 · vol. 114 · 131
18. High-strain lead-free antiferroelectric electrostrictors10.1002/adma.200901516 ↗
19. Giant strain in Nb-doped Bi0.5(Na0.82K0.18)0.5TiO3 lead-free electromechanical ceramics10.1016/j.matlet.2010.07.048 ↗