| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1460961 | Ceramics International | 2015 | 6 Pages |
Abstract
Effects of Li- and La-doping on the structural, ferroelectric, and strain properties of Bi1/2(Na0.82K0.18)1/2TiO3 (BNKT) ceramics were compared. In this study, Li+ was selected as the A-site acceptor and La3+ as the A-site donor. Li doping resulted in hardening of BNKT with an improved mechanical quality factor (Qm) of 253 and an increased coercive field (Ec), while La doping brought about a softening effect that was evidenced by an improved piezoelectric constant (d33) of 172 pC/N and decreased Ec. In addition, the large normalized bipolar strain (Smax/Emax) was obtained up to 650 pm/V in 3 mol% La-doped BNKT.
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Authors
Thi Hinh Dinh, Mohammad Reza Bafandeh, Jin-Kyu Kang, Chang-Hyo Hong, Wook Jo, Jae-Shin Lee,