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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Piezoelectric and Dielectric Properties of (LiNaK)(NbTaSb)O_3 Ceramics with Variation in Poling Temperature
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Piezoelectric and Dielectric Properties of (LiNaK)(NbTaSb)O_3 Ceramics with Variation in Poling Temperature

机译：极化温度变化的（LiNaK）（NbTaSb）O_3陶瓷的压电和介电性能

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摘要

In this study, lead-free (LiNaK)(NbTaSb)O_3 piezoelectric ceramics were fabricated on the basis of the amount of K_2CO_3 addition, and their piezoelectric and dielectric properties were investigated by varying the amount of K_2CO_3 addition and poling temperature. First, to achieve optimum poling conditions for manufactured specimens, the poling temperature was varied to be 0, 20, 50, 80, and 110℃. The optimum poling temperature was 20℃. It was found that 0.1 wt% K_2CO_3-added (Li_(0.04)Na_(0.44)K_(0.52)) (Nb_(0.86)Ta_(0.1)Sb_(0.04))O_3 ceramics exhibit excellent piezoelectric properties in an experiment performed on the basis of the amount of K_2CO_3 addition. That is, a 0.1 wt% K_2CO_3-added specimen showed a large electromechanical coupling factor k_p = 0.494, a large piezoelectric constant d_(33) = 274 pC/N, and a high density of 4.65 g/cm~3 at the poling temperature of 20℃.
机译：在这项研究中，基于K_2CO_3的添加量制造了无铅（LiNaK）（NbTaSb）O_3压电陶瓷，并通过改变K_2CO_3的添加量和极化温度研究了它们的压电和介电性能。首先，为了获得最佳的人造样品极化条件，将极化温度更改为0、20、50、80和110℃。最佳极化温度为20℃。发现在添加了0.1wt％K_2CO_3的（Li_（0.04）Na_（0.44）K_（0.52））（Nb_（0.86）Ta_（0.1）Sb_（0.04））O_3陶瓷上表现出优异的压电性能。 K_2CO_3添加量的基础。即，添加0.1wt％的K_2CO_3的样品显示出大的机电耦合因子k_p = 0.494，大的压电常数d_（33）= 274 pC / N，并且在极化温度下具有4.65 g / cm〜3的高密度。 20℃。

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