Back to Search
Start Over
Middle-low temperature sintering and piezoelectric properties of CuO and Bi2O3 doped PMS-PZT based ceramics for ultrasonic motors
- Source :
- Ceramics International. 47:20117-20125
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- A ternary solid-solution piezoelectric ceramic of rare-earth oxides modified 0.03 Pb(Mn1/3Sb2/3)O3-0.97 Pb(Zr0.505Ti0.495)O3 + x wt.% CuO + y wt.% Bi2O3 (PMS-PZT + x wt.% CuO + y wt. % Bi2O3) (x, y = 0–0.2) was successfully prepared via a transient-liquid-phase sintering. Both Cu2+ and Bi3+ were believed to replace the A-site Pb ions and to evidently induce the lattice shrinkage and the distortion decrease. However, the addition of only a small amount of CuO was found to effectively reduce the sintering temperature, sustain good piezoelectric properties and predominant transgranular fracture modes, but obviously increase the average grain size and high-field dielectric loss. Further experimental results indicate that the grain growth of the ceramics was inhibited effectively and the high-field dielectric loss was reduced through CuO and Bi2O3 co-doping. The 0.05 wt% CuO and 0.15 wt% Bi2O3 co-doped PMS-PZT ceramics sintered at 1050 °C exhibit excellent dielectric and piezoelectric properties of d33 = 410 pC/N, kp = 0.62, Qm = 1478, er = 1550, tan δ = 0.8% (400 V/mm) and Tc = 330 °C. The experimental results can provide a solid fundament for multilayer piezoelectric actuating devices.
- Subjects :
- 010302 applied physics
Materials science
Process Chemistry and Technology
Sintering
Transgranular fracture
02 engineering and technology
Dielectric
021001 nanoscience & nanotechnology
01 natural sciences
Piezoelectricity
Grain size
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Grain growth
visual_art
0103 physical sciences
Materials Chemistry
Ceramics and Composites
visual_art.visual_art_medium
Dielectric loss
Ceramic
Composite material
0210 nano-technology
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........851b33f5f267d1f10ce159d933496ac3