| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10624322 | Ceramics International | 2016 | 7 Pages |
Abstract
This work investigated the effect of B2O3 on phase structure and electrical properties of CuO-modified (Ba0.95Ca0.05)(Ti0.90Sn0.10)O3-0.5CuO-xB2O3 (BCTSCu0.5Bx, 0â¤xâ¤1.8 mol.%) lead-free ceramics sintered at a low sintering temperature (Ts=1200 °C). It was found that co-doping CuO and B2O3 is effective both on obtaining a dense microstructure and increasing the Curie temperature (TC) in BCTSCu0.5Bx ceramics. In addition to the sintering aids behavior of both CuO and B2O3 to reduce Ts, the increased TC mainly stems to the solid solution of B3+ which enters initially tetrahedral sites and then VO
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- and the sites between an apical O2â and Ti4+ with increasing its content. Good piezoelectric properties of d33=360 pC/N and kp=30% with an enhanced TC (49 °C) were obtained at x=1.4 owning to a proper proportion of rhombohedral and tetragonal phase even the Ts was as low as 1200 °C.
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- and the sites between an apical O2â and Ti4+ with increasing its content. Good piezoelectric properties of d33=360 pC/N and kp=30% with an enhanced TC (49 °C) were obtained at x=1.4 owning to a proper proportion of rhombohedral and tetragonal phase even the Ts was as low as 1200 °C.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lei Zhao, Bo-Ping Zhang, Wen-Yu Wang, Ya-Hong Ding, Si-Meng Zhang, Li-Feng Zhu, Ning Wang,