Bi0.04Sr0.94TiO3铁电陶瓷的合成与变温介电谱研究

Ze LI,Hong-mei YIN,Xin SU,Shu-yin ZHOU,Xue-jing MA,Lai WEI,Lan-lan ZHOU,Wen ZHANG,Gui-hua LU,Heng-wei ZHOU,Jin-lu ZHANG,Yi-neng HUANG

Journal of Yili Normal University(Natural Science Edition)（2010）

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Abstract

采用固相反应一次烧结成型的方法制备了Bi0.04Sr0.94TiO3弛豫铁电陶瓷,着重研究了烧结条件对陶瓷的外形和介电性能的影响.结果表明,适当的压力和粉末湿度能促进样品压制成型,较慢的升降温速率有利于样品受热均匀,优化陶瓷的外形,改善微观结构.变温低频介电谱测量分析表明,所合成的Bi0.04Sr0.94TiO3陶瓷样品的主相的确是弛豫铁电相,而且性能稳定.

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Key words

ferroelectric ceramics,relaxation phenomenon,dielectric spectrum,solid phase reaction

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