Nonlinear Shear Response in (K,Na)NbO3-Based Lead-Free Piezoelectric Ceramics

Manabu Hagiwara; Seita Takahashi; Takuya Hoshina; Hiroaki Takeda; Osamu Sakurai; Takaaki Tsurumi

doi:10.4028/www.scientific.net/KEM.445.47

Paper Titles

Evolution of Internal Stress and Influence on Dielectric Properties by Number of Dielectric Layers in MLCC
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Degradation of Resistance over Time for Multilayer Ceramic Capacitors
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Analysis of Oxygen Vacancy Trapping at [001] Symmetric Tilt Grain Boundaries in Barium Titanate by Atomistic Simulations
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Improvement of Compact X-Rays Source Using Uniaxially Polarized LiNbO₃ Single Crystal
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Nonlinear Shear Response in (K,Na)NbO₃-Based Lead-Free Piezoelectric Ceramics
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Discharge Current Measurement and Depolarization Property of Lead-Free Niobate Piezoceramics
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Dielectric and Piezoelectric Properties of (Na,Ba)(Nb,Ti)O₃ Lead-Free Piezoelectric Ceramics
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Materials Design and Characterization of (Bi_1/2Na_1/2)TiO₃-Bi(B’,B”)O₃ Ceramics
p.59

Ion Exchange of Layer Structured Niobate Cs₄Nb₆O₁₇•3H₂O and its Application as Cathode Material in a Rechargeable Lithium Battery
p.65

HomeKey Engineering MaterialsKey Engineering Materials Vol. 445Nonlinear Shear Response in (K,Na)NbO3-Based...

Nonlinear Shear Response in (K,Na)NbO₃-Based Lead-Free Piezoelectric Ceramics

Abstract:

The piezoelectric shear response of 94.0(Ka0.5, Na0.5)NbO3 (KNN) + 5.0LiNbO3 (LN) + 0.5SrTiO3 (ST) + 0.5BiFeO3 (BF) ceramics was investigated by Laser Doppler Vibrometry (LDV) and resonance-antiresonance method. From resonance-antiresonance method, the piezoelectric d15 constant was obtained to be 273 pC/N. The shear strain obtained by LDV　at the frequency of 150kHz showed strong nonlinearity. This suggested that the domain contribution to piezoelectric response in shear mode of KNN-LN-ST-BF ceramics existed at the operational frequency for the shear mode divices.