| 高性能铌酸钾钠无铅压电陶瓷研制 |
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| 引用本文： | 臧国忠,王矜奉,明保全,亓鹏,杜鹃,郑立梅,盖志刚.高性能铌酸钾钠无铅压电陶瓷研制[J].电子元件与材料,2005,24(11):27-29. |
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| 作者姓名： | 臧国忠 王矜奉 明保全 亓鹏 杜鹃 郑立梅 盖志刚 |
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| 作者单位： | 山东大学物理与微电子学院,山东,济南,250100 |
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| 摘 要： | 用常规氧化物固溶方法制备了无铅压电铌酸盐((Na0.5K0.5)1-xLixSbyNb1-yO3)陶瓷。实验结果表明,Li+和Sb5+的引入提高了陶瓷的压电性能。在一定配比范围内(Li和Sb在10%摩尔分数以内),材料为斜方、四方相共存的钙钛矿结构,材料的压电常数d33在270 pC/N以上,机电耦合系数kp、kt、k33分别达到49×10–2、43×10–2、64×10–2。介质损耗tgδ小于2.0×10_2,居里温度tC高达375℃。
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| 关 键 词： | 无机非金属材料 无铅压电陶瓷 铌酸盐 机电耦合系数 居里温度 |
| 文章编号： | 1001-2028（2005）11-0027-03 |
| 收稿时间： | 2005-07-29 |
| 修稿时间： | 2005-07-29 |
Preparation of Sodium-potassium Niobate Lead-free Piezoelectric Ceramics with High Performances |
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| ZANG Guo-zhong,WANG Jin-feng,MING Bao-quan,QI Peng,DU Juan,ZHENG Li-mei,GAI Zhi-gang.Preparation of Sodium-potassium Niobate Lead-free Piezoelectric Ceramics with High Performances[J].Electronic Components & Materials,2005,24(11):27-29. |
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| Authors: | ZANG Guo-zhong WANG Jin-feng MING Bao-quan QI Peng DU Juan ZHENG Li-mei GAI Zhi-gang |
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| Abstract: | Sodium-potassium Niobate ceramics were prepared by conventional oxide solid-solution technique.The piezoelectric properties of Sodium-potassium Niobate at morphotropic phase boundary(MPB) were investigated.The results show that Li+ and Sb5+ could enhance the piezoelectric properties of the ceramics,which piezoelectric constant d33 is up to 270 pC/N or more,electromechanic coupling factors kp is 0.49、kt is 0.43、k33 is 0.64,dielectric loss tgδ < 2.0×10–2 and curie temperature tC is up to 375℃. |
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| Keywords: | inorganic non-metallic materials lead-free piezoelectric ceramics niobate electromechanic coupling coefficient curie temperature |
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