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首页> 外文期刊>Physica, B. Condensed Matter >Dielectric and piezoelectric properties of low temperature sintering lead free (Bi0.5Na0.7+xK0.2Li0.1)(0.5)TiO3 piezoelectric ceramics
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Dielectric and piezoelectric properties of low temperature sintering lead free (Bi0.5Na0.7+xK0.2Li0.1)(0.5)TiO3 piezoelectric ceramics

机译：低温烧结无铅（Bi0.5Na0.7 + xK0.2Li0.1）（0.5）TiO3压电陶瓷的介电和压电性能

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摘要

By adding excess of Na2CO3 as sintering aid Bi-0.5(Na0.7K0.2Li0.1)(0.5)TiO3 (BNKLT-Na-x) composition ceramics were fabricated at sintering temperature as low as 1000 degrees C using conventional solid phase synthesis method. The dielectric and piezoelectric properties of ceramics were investigated with the amount of different Na2CO3 substitutions. At the sintering temperature of 1020 degrees C, Bi-0.5(Na0.7K0.2Li0.1)(0.5)TiO3 lead-free ceramics with an excess of 5 mol% Na2CO3 exhibited the optimum properties with d(33)similar to 171 pC/N, k(p)similar to 30.0%. These results give a new way to low-temperature sintering Bi1/2Na1/2TiO3-based lead-free piezoelectric ceramic.
机译：通过添加过量的Na2CO3作为烧结助剂，使用常规固相合成方法在低至1000摄氏度的烧结温度下制备了Bi-0.5（Na0.7K0.2Li0.1）（0.5）TiO3（BNKLT-Na-x）组成的陶瓷。用不同的Na2CO3取代量研究了陶瓷的介电和压电性能。在1020摄氏度的烧结温度下，Na-CO3含量超过5 mol％的Bi-0.5（Na0.7K0.2Li0.1）（0.5）TiO3无铅陶瓷表现出最佳性能，d（33）接近171 pC / N，k（p）接近30.0％。这些结果为低温烧结Bi1 / 2Na1 / 2TiO3基无铅压电陶瓷提供了一条新途径。

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