Enhanced piezoelectric properties and excellent thermal stabilities of cobalt-modified Aurivillius-type calcium bismuth titanate (CaBi4Ti4O15)
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- 作者：Tian-Long Zhaoa ; Chun-Ming Wanga ; wangcm@sdu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Chun-Lei Wanga ; Yi-Ming Wanga ; Shuxiang Dongb
- 关键词：Piezoelectric ceramics ; Bismuth layer-structured ferroelectrics (BLSFs) ; High temperature applications ; Calcium bismuth titanate (CaBi4Ti4O15)
- 刊名：Materials Science and Engineering: B
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：201
- 期：Complete
- 页码：51-56
- 全文大小：1114 K
文摘
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Cobalt oxide modified CBT-based ceramics were prepared and investigated in detail.
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XRPD analysis revealed Co ions enter into B-site of CBT-based ceramics.
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CBT-Co4 ceramics show the enhanced d33 of 14 pC/N and Tc of 782 °C.
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CBT-Co4 ceramics present the improved high-temperature resistivity.
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Thermal depoling behavior indicates CBT-Co4 ceramics exhibit good thermal stability.