Dielectric and piezoelectric properties of Li-substituted lead-free (Bi0.5Na0.5)TiO3-(Bi0.5K0.5)TiO3-BaTiO3 ceramics

다국어 초록 (Multilingual Abstract)

Lead-free 0.79(Bi0.5Na0.5)TiO3–0.14[Bi0.5(K0.5-xLix)]TiO3–0.07BaTiO3 (BNBK79 + xLi, x = 0.0, 0.1, 0.2, 0.25,0.3, and 0.4) ceramics were prepared by conventional solid state reaction process. The crystalline structures and surface morphologies are investigated by X-ray diffraction method and scanning electron microscopy. Dielectric and piezoelectric properties were measured. With increasing of lithium substitution,the Curie temperatures of BNBK79 + xLi ceramics increase, but the maximum value of the dielectric constant decreases. And a relatively large remnant polarization of 17.6 μC/㎠ and 157 pC/N of d33 has been obtained when x = 0.3.

참고문헌 (Reference)

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