Details

Autor(en) / Beteiligte

• Yuan, Changlai
• Meng, Liufang
• Liu, Yong
• Zhou, Changrong
• Chen, Guohua
• Feng, Qin
• Cheng, Gang
• Rao, Guanghui

Titel

Microstructures and energy storage properties of Mn-doped 0.97Bi^sub 0.47^Na^sub 0.47^Ba^sub 0.06^TiO3-0.03K^sub 0.5^Na^sub 0.5^NbO3 lead-free antiferroelectric ceramics

Ist Teil von

• Journal of materials science. Materials in electronics, 2015-11, Vol.26 (11), p.8793

Ort / Verlag

New York: Springer Nature B.V

Erscheinungsjahr

2015

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Mn-doped 0.97Bi^sub 0.47^Na^sub 0.47^Ba^sub 0.06^TiO3-0.03K^sub 0.5^Na^sub 0.5^NbO3 (BNBT-KNN) lead-free energy storage ceramics were prepared by the conventional solid-state reaction methods. Effects of Mn addition on the microstructures and energy storage properties of the ceramics were investigated. XRD analysis revealed that all the ceramics possessed a single perovskite structure. As the Mn content arose from 0 to 3 mol. %, the average grain size of the BNBT-KNN ceramics increased by nearly 4 times (from ~1.6 to ~6.2 µm). The energy storage density of the BNBT-KNN ceramics firstly increased and then decreased with increment of Mn addition. With the rise of external electric field loaded on the ceramics, the energy storage density increased drastically, and a maximum value of 0.938 J/cm^sup 3^ at 79 kV/cm was achieved by the BNBT-KNN samples with 1.0 mol. % Mn content.