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Dielectric and Piezoelectric Properties of Textured Lead-Free Na 0 . 5 Bi 0 . 5 TiO 3-Based Ceramics
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dong, Nannan Gao, Xiaoyi Xia, Fangquan Liu, Hanxing Zhang, Shujun |
| Copyright Year | 2019 |
| Abstract | This work provides a comparative study of the dielectric and piezoelectric properties of randomly oriented and textured 0.88Na 0.5 Bi 0.5 TiO 3 -0.08K 0.5 Bi 0.5 TiO 3 -0.04BaTiO 3 (88NBT) ceramics. Textured ceramics were fabricated by template grain growth (TGG) method using NaNbO 3 (NN) for templates. For textured ceramics with 4 wt% NN templates, a Lotgering factor of 96% and piezoelectric coefficient d 33 of 185 pC/N were obtained. Compared to the randomly oriented ceramics, textured ceramics show lower strain hysteresis (H = 7.6%), higher unipolar strain of 0.041% with corresponding large signal piezoelectric coefficient d 33* of 200 pm/V at applied field of 2 kV/mm. This enhancement can be explained by the grain orientation along direction by texturing, where an engineered domain configuration is formed after polarization, leading to decreased hysteresis and increased piezoelectric property. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ro.uow.edu.au/cgi/viewcontent.cgi?article=4699&context=aiimpapers |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |