Bi改性铌酸钾钠基无铅压电陶瓷的温度稳定性OA北大核心CSCDCSTPCD
Temperature stability of Bi-modified potassium-sodium niobate based lead-free piezoelectric ceramics
铌酸钾钠基压电陶瓷(Na_(0.53)K_(0.41)Li_(0.06))Nb_(0.955)Sb_(0.045)O_3的正交-四方多型相变在室温附近,具有良好的压电性能,但其温度稳定性很差.通过掺杂Bi_2O_3,使该陶瓷的正交-四方多型相变温度t_(O-T)从15 ℃降低到了-9 ℃,同时保持了较高的居里温度t_C(368 ℃),从而显著改善了其压电性能的温度稳定性.由于Bi~(3+)施主掺杂作用和Sb~(5+)较强的电负性,改性后的陶瓷保持…查看全部>>
Potassium-sodium niobate based piezoelectric ceramics, (Na_(0.53)K_(0.41)Li_(0.06))Nb_(0.955)Sb_(0.045)O_3 (NKLNS), show excellent piezoelectric properties as their orthorhombic-tetragonal polymorphic phase transition temperature is colse to room temperature. However, the piezoelectric properties are unstable with the change of temperature. With the doping of Bi_2O_3, the orthorhombic-tetragonal phase transition temperature t_(O-T) of the ceramics can be dec…查看全部>>
吴清早;王矜奉;郑立梅;臧国忠;赵明磊
中国船舶重工集团第七二六研究所,上海,201108山东大学,物理学院,山东,济南,250100山东大学,物理学院,山东,济南,250100聊城大学,材料科学与工程学院,山东,聊城,252059山东大学,物理学院,山东,济南,250100
信息技术与安全科学
铌酸钾钠多型相变温度稳定性无铅压电陶瓷
potassium-sodium niobate polymorphic phase transition temperature stability lead-free piezoelectric ceramic
《电子元件与材料》 2009 (11)
高性能铌酸钾钠基无铅压电陶瓷温度稳定性研究
1-4,4
国家自然科学基金资助项目(No. 50802038)教育部博士点基金资助项目(No. 20070422059)
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