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首页> 外文期刊>Japanese journal of applied physics >Relation between lattice distortion and depolarization temperature in quenched (Bi_(0.5)Na_(0.5))TiO_3-(Bi_(0.5)Li_(0.5))TiO_3-(Bi_(0.5)K_(0.5))TiO_3 ceramics
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Relation between lattice distortion and depolarization temperature in quenched (Bi_(0.5)Na_(0.5))TiO_3-(Bi_(0.5)Li_(0.5))TiO_3-(Bi_(0.5)K_(0.5))TiO_3 ceramics

机译:淬火晶格变形和去极化温度之间的关系(Bi_(0.5)Na_(0.5))TiO_3-(Bi_(0.5)Li_(0.5))TiO_3-(Bi_(0.5)K_(0.5))TiO_3陶瓷

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摘要

Lead-free piezoelectric ceramics, (1-0.04-x)(Bi0.5Na0.5)TiO3-0.04(Bi0.5Li0.5)TiO3-x(Bi0.5K0.5)TiO3 (abbreviated BNLKT4-100x), were prepared by quenching treatment after sintering, and then their electrical properties and lattice distortion were investigated for the purpose of increasing their depolarization temperature T-d. The T-d was similar to 40 degrees C higher for x = 0, 0.1, and 0.18 in the rhombohedral structure and at the morphotropic phase boundary composition (MPB), and similar to 80 degrees C higher for x = 0.3 and 0.4 in the tetragonal structure than those of normally cooled samples. The increase in Td was strongly correlated with enlargement for lattice distortion. T-d and k(33) for quenched BNLKT4-18 in MPB composition exhibited 0.59 degrees C and 223 degrees C, respectively. Both of T-d and k(33) was increased by quenching compared with previously reported values. That is, tread-off relation between T-d and k(33) was overcame. Moreover, T-d elevated above 300 degrees C for quenched BNLKT4-40 showing tetragonal phase. Therefore, we experimentally revealed a strong correlation between lattice distortion and T-d. The quenching is an effective of increasing T-d for BNLKT solidsolution systems without the deterioration of their piezoelectric properties. (C) 2019 The Japan Society of Applied Physics
机译:制备无铅压电陶瓷,(1-0.04-x)(Bi0.5na0.5)TiO3-0.04(Bi0.5Li0.5)TiO3-X(Bi0.5k0.5)TiO3(缩写Bnlkt4-100x)通过烧结后淬火处理,然后研究其电性能和晶格畸变,以增加其去极化温度Td。在菱形结构中的X = 0,0.1和0.18中的Td与40摄氏度相似,并且在Morphotopic相位边界组合物(MPB)中,并且在四边形结构中类似于x = 0.3和0.4的80℃。比通常冷却样品的样品。 TD的增加与晶格变形的扩大强烈相关。在MPB组合物中淬火BNLKT4-18的T-D和K(33)分别显示出0.59℃和223℃。与先前报道的值相比,通过淬火增加T-D和K(33)。也就是说,T-D和K(33)之间的踩踏关系是克服的。此外,T-D升高300摄氏度,用于淬火BNLKT4-40,显示四方相。因此,我们通过实验揭示了晶格变形和T-D之间的强烈相关性。淬火是对BNLKT固化系统增加T-D的有效,而不会劣化它们的压电性能。 (c)2019年日本应用物理学会

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    《Japanese journal of applied physics》 |2019年第sl期|SLLD02.1-SLLD02.5|共5页
  • 作者单位

    Tokyo Univ Sci Fac Sci & Technol Noda Chiba 2788510 Japan;

    Tokyo Univ Sci Fac Sci & Technol Noda Chiba 2788510 Japan;

    Tokyo Univ Sci Fac Sci & Technol Noda Chiba 2788510 Japan;

    Tokyo Univ Sci Fac Sci & Technol Noda Chiba 2788510 Japan;

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