用传统固相法成功制备出了致密的、相对密度超过95%的Bi3NbTiO9(BNT)压电陶瓷;采用XRD和SEM对陶瓷的结构和晶粒形貌进行了表征;测出了BNT陶瓷在居里温度点附近的介电特性,同时确定了该陶瓷的居里温度Tc为914℃.电滞回线的测试显示了该材料典型的硬铁电性,经过高温极化,测出材料的压电常数d33=7 pC/N.
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