Details

Autor(en) / Beteiligte

• Habib, Muhammad
• Lee, Myang Hwan
• Kim, Da Jeong
• Choi, Hai In
• Kim, Myong-Ho
• Kim, Won-Jeong
• Song, Tae Kwon

Titel

Ferroelectric and Piezoelectric Properties of BiFeO3‐Based Piezoelectric Ceramics

Ist Teil von

• Physica status solidi. A, Applications and materials science, 2020-06, Vol.217 (12), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2020

Quelle

Wiley Blackwell Single Titles

Beschreibungen/Notizen

• Bismuth ferrite‐based bulk ceramics (1–x)Bi0.97Sm0.08FeO3–xBaTiO3 (BSF–xBT with x = 0.00 FC, x = 0.00 WQ, x = 0.01 WQ, x = 0.03 WQ, and x = 0.05 WQ, where FC is the furnace cooled and WQ is the water quenched) are synthesized by a conventional solid‐state reaction method followed by WQ process. The WQ procedure (compared with FC) dramatically improves the remnant polarization (Pr) of x = 0.00 ceramic from 11 to 21 μC cm−2. BT incorporation gradually reduces the coercive field (Ec) and Pr significantly enhances to 28.5 μC cm−2 (at x = 0.03) with fully saturated P–E hysteresis loops. The temperature‐dependent ferroelectric properties reveal that the corresponding Pr values improve with the rising temperature; this behavior may be related to the thermally activated domain walls motion. Symmetric and closed electromechanical strain–electric field (S–E) curves are obtained with a maximum strain of Smax = 0.05% for an optimum composition together with high charge sensor constant (d33 = 56 pC N−1). The structural and electrical properties of the investigated ceramics are presented in detail. (1−x)Bi0.97Sm0.08FeO3−xBaTiO3 ceramics (with x = 0.00–0.05) are synthesized through the conventional solid‐state reaction method. The remanent polarizaion of the furance cooled ceramic significantly enhances from 12 to 28.5 μC cm−2 with water quenching and BaTiO3 addition. High piezoelectric performace (d33 = 56 pC N−1 and d33* = 40 pm V−1) obatins for an optimum composition (with x = 0.03).