Lead-free ceramics with the composition 0.91K1/2Bi1/2TiO3-0.09(0.82BiFeO3-0.15NdFeO3-0.03Nd2/3TiO3) were prepared using a conventional solid state, mixed oxide route. The ceramics exhibited a high strain of 0.16% at 6 kV mm-1, stable from room temperature to 175 °C, with a variation of <10%. The materials were fabricated into multilayer structures by co-firing with Pt internal electrodes. The prototype multilayer actuator exhibited constant strains up to 300 °C with a variation of ∼15%. The composition showed fatigue resistant behaviour in both monolithic and multilayer form after bipolar loading of 106 cycles.
CITATION STYLE
Khesro, A., Wang, D., Hussain, F., Sinclair, D. C., Feteira, A., & Reaney, I. M. (2016). Temperature stable and fatigue resistant lead-free ceramics for actuators. Applied Physics Letters, 109(14). https://doi.org/10.1063/1.4964411
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