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Structural, Pyroelectric and Electric Properties of Na_1-xLi_xNbO₃ Ceramics

Author： Konieczny K. Śmiga W.

Publisher： Taylor & Francis Ltd

ISSN： 0015-0193

Source： Ferroelectrics, Vol.417, Iss.1, 2011-01, pp. : 151-160

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Lead-free ceramics of NaNbO₃ - LiNbO₃ were prepared by conventional ceramic processing technique. The obtained samples show perovskite structure. Structural, microstructural, dielectric and pyroelectric measurements were made. The remanent polarization depends on the concentration of Li-ions, it increases for x = 0–0.02, and it decreases for x > 0.02. The investigation of the pyroeffect reveals the existence of polar microregions in the temperature range above T_m. The obtained materials are expected to be promising candidate for lead-free electronic ceramics.

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