Details

Autor(en) / Beteiligte

• Zhou, Shiyu
• Pu, Yongping
• Zhao, Xinyi
• Ouyang, Tao
• Ji, Jiamin
• Zhang, Qianwen
• Zhang, Canpeng
• Sun, Shikuan
• Sun, Rong
• Li, Junjie
• Wang, Dawei

Titel

Dielectric temperature stability and energy storage performance of NBT‐based ceramics by introducing high‐entropy oxide

Ist Teil von

• Journal of the American Ceramic Society, 2022-07, Vol.105 (7), p.4796-4804

Ort / Verlag

Columbus: Wiley Subscription Services, Inc

Erscheinungsjahr

2022

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• In this study, a high‐entropy perovskite oxide Sr(Zr0.2Sn0.2Hf0.2Ti0.2Nb0.2)O3 (SZSHTN) was first introduced to Na0.5Bi0.5TiO3 (NBT) lead‐free ferroelectric ceramics to boost both the high‐temperature dielectric stability and energy storage performance. Excellent comprehensive performance was simultaneously obtained in the 0.8NBT–0.2SZSHTN ceramic with high ε′ value (> 2000), wide ε′‐temperature stable range (TCC < 5%, 52.4–362°C), low tanδ value in a wide range (<0.01, 90–341°C) and high energy storage performance (Wrec = 3.52 J/cm3, Wrec and η varies ±6.08% and ±7.4% from 20 to 150°C), which endows it the promising potential to be used in high‐temperature environments.