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采用传统的氧化物固溶工艺制备了(Na0.51K0.44Li0.05)Nb092Ta0.08O3和助烧剂Na5.4Cu13Sb10O29.对(Na0.51K044Li0.05)Nb0.92Ta0.08O3添加助烧剂Na5.4Cu1.3Sb10O29的研究表明,助烧剂能大幅度提高(Na0.51K0.44Li0.05)Nb0.92Ta0.08O3的压电和机电耦合性能.质量百分比为4%Na5.4Cu1.3Sb10O29掺杂的(Na051K0.44Li0.05)Nb092Ta0.08O3具有高的压电应变常数(d33=266pC/N),高的机电耦合系数kt(46.7%)、k33(63.7%),较低的损耗(tanδ=1.8%),和高的居里温度(391℃).这些参数表明,Na5.4Cu1.3Sb10O29掺杂的(Na0.51K0.44Li0.05)Nb0.92Ta0.08O3是替代锆钛酸铅且具有很好的应用前景的无铅压电陶瓷.

参考文献

[1] Saito Y;Takao H;Tani T et al.Lead-free piezoceramics[J].Nature(London),2004,42:84-87.
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[3] Matsubara M;Kikuta K;Hirano S .Piezolectric Properties of (Na0.5K0.5) (Nb1-xTax) O3-K5.4Cu1.3Ta10O24 Ceramics[J].Journal of Applied Physics,2005,44:258-263.
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