Lin, D., Kwok, K.W., Lam, K.H. and Chan, H.L.W. (2008) Phase structure and electrical properties of K0.5Na0.5(Nb0.94Sb0.06) O-3-LiTaO3 lead-free piezoelectric ceramics. Journal of Physics D: Applied Physics, 41(5), 052002. (doi: 10.1088/0022-3727/41/5/052002)
Full text not currently available from Enlighten.
Abstract
Lead-free piezoelectric ceramics (1-x)K0.5Na0.5(Nb0.94Sb0.06)O3–xLiTaO3 have been fabricated by a conventional solid-state sintering technique. The ceramics can be well sintered at 1080–1110 °C and exhibit a dense, single-phase perovskite structure at x ≤ 0.06. Coexistence of the tetragonal and orthorhombic phases is formed in the ceramics with 0.02 < x < 0.05, leading to a significant enhancement in piezoelectric properties. For the ceramic with x = 0.04, the piezoelectric properties become optimum: piezoelectric constant d33 = 271 pC N−1, electromechanical coupling coefficients kP = 0.53 and kt = 0.43. Moreover, the ceramics are non-deliquescent and exhibit excellent performance in transducer applications, indicating that the ceramics are ready for replacing lead-containing ceramics in practical applications.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Lam, Dr Koko |
| Authors: | Lin, D., Kwok, K.W., Lam, K.H., and Chan, H.L.W. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | Journal of Physics D: Applied Physics |
| Publisher: | IOP Publishing |
| ISSN: | 0022-3727 |
| ISSN (Online): | 1361-6463 |
University Staff: Request a correction | Enlighten Editors: Update this record
Deposit and Record Details
Deposit and Record Details