硅酸盐学报

BCZT无铅压电陶瓷的水热法制备及其性能

单位：1. 常州大学材料科学与工程学院江苏省光伏科学与工程协同创新中心江苏常州 213164 2. 上海师范大学光电材料与器件重点实验室上海师范大学物理系上海 200234 3. 中国科学院无机功能材料与器件重点实验室上海 201800

分类号：TM282

出版年,卷(期):页码：2017,45(9):0-0

DOI：

摘要：

通过水热反应法低温烧结制备Ba0.85Ca0.15Zr0.1Ti0.9O3(BCZT)无铅压电陶瓷，研究了烧结温度和时间对BCZT陶瓷的晶体结构和电学性能的影响。与固相反应法相比，由于水热法制备的BCZT前驱体的高活性，可以低温烧结制备BCZT陶瓷，低温烧结制备的BCZT陶瓷呈现纯钙钛矿结构、较为均匀的小晶粒微观形貌(小于10 μm)和更高的致密度。通过水热法制备的BCZT陶瓷呈现优良的电学性能，其介电响应特征接近正常铁电体、又呈现一定的频率色散现象。1 340 ℃烧结18 h制备的BCZT陶瓷的剩余极化强度最大，Pr=6.84 μC/cm2。1 320 ℃烧结18 h制备的BCZT陶瓷压电性能最佳，d33达到最大值213 pC/N。

基金项目：

国家自然科学基金(51577015)；江苏省产学研合作前瞻性联合研究项目(BY2015027-220)；江苏高校优势学科建设工程资助。

作者简介：

卢晓羽(1992—)，女，硕士研究生。

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