We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Synthesis and properties of La-doped PMN-PT transparent ferroelectric ceramics.
- Authors
Ma, Zhenmeng; Zhang, Yongcheng; Lu, Chaojing; Qin, Yalin; Lv, Zonglin; Lu, Shijuan
- Abstract
Transparent ferroelectric ceramics 0.88Pb(Mg1/3Nb2/3)O3-0.12PbTiO3 (0.88PMN-0.12PT) with different La-doping concentrations (0.5, 1.0, 1.5 and 2.0 mol%) were fabricated via solid-state reaction and two-stage sintering. The effects of La-doping on the microstructure and electrical properties of the 0.88PMN-0.12PT ceramics were investigated. All the La-doped 0.88PMN-0.12PT ceramics exhibit pure perovskite phase with extremely dense microstructure and high optical transmittance. Among them, the 1.0 mol% La-doped ceramics show the highest transparency around 70% in near-infrared region, which is very close to its theoretical transmittance and basically meet the requirement on the transparency of electro-optical applications. The remanent polarization <italic>P</italic>r, coercive field <italic>E</italic>c, <italic>ε</italic>max, the temperatures <italic>T</italic>εmax corresponding to <italic>ε</italic>max of the 0.88PMN-0.12PT ceramics decreased, and the relaxor behavior enhanced apparently with increasing La-doping concentration, which may ascribe to the fact that the substitution of Pb2+ ions by La3+ions reduces the long-range coupling of BO6 octahedrons.
- Subjects
FERROELECTRIC ceramics; TRANSPARENT ceramics; CERAMICS; MICROSTRUCTURE
- Publication
Journal of Materials Science: Materials in Electronics, 2018, Vol 29, Issue 8, p6985
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-018-8685-0