Dielectric and Piezoelectric Properties of Sodium Bismuth Titanate Ceramics with KCe Substitution

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2008,（12）
• 页码范围: 4414-4416
• 页数: 3页
• 语种: 英文

摘要

The piezoelectric properties of the (KCe)-substituted sodium bismuth titanate (Na0.5Bi4.5 Ti4O15, NBT) piezo-electric ceramics are investigated. The piezoelectric properties of NBT ceramics are significantly enhanced by (KCe) substitution. The Curie temperature Tc, and piezoelectric coefficient d33 for the (KCe)-substituted NBT are found to be 663°C, and 27pC/N, respectively. Dielectric and annealing spectroscopy present that the (KCe) co-substituted NBT piezoelectric ceramics possess stable piezoelectric properties.