钛酸钡三维复合材料微观结构与电学性能研究  

Microstructure and Electrical Properties of Barium Titanate Three-dimensional Composites

作　　者：吴超峰 龚文 耿进锋 崔建业 秘立鹏 聂京凯 何强 裘旭挺 WU Chao-feng;GONG Wen;GENG Jin-feng;CUI Jian-ye;MI Li-peng;NIE Jing-kai;HE Qiang;QIU Xu-ting(Center of Advanced Ceramic Materials and Devices,Yangtze Delta Region Institute of Tsinghua University,Jiaxing 314006,China;Electrical Power Research Institute of Henan Electric Power Corporation,Zhenzhou 450052,China;State Grid Jinhua Power Supply Company,Jinhua 321001,China;Electrical Power Research Institute of State Grid East Inner Mongolia Power Co.,Ltd,Hohhot 010020,China;State Key Laboratory of Advanced Transmission Technology(Global Energy Interconnection Research Institute Co.Ltd.),Beijing 102209,China;Wuzhen Laboratory,Tongxiang 314500,China)

机构地区：[1]浙江清华长三角研究院先进陶瓷材料与器件研究中心,嘉兴314006 [2]国家电网河南电力科学研究院,郑州450052 [3]国家电网浙江省电力有限公司金华供电公司,金华321001 [4]国家电网内蒙古东部电力有限公司电力科学研究院,呼和浩特010020 [5]先进输电技术国家重点实验室(全球能源互联网研究院有限公司),北京102209 [6]乌镇实验室,桐乡314500

出　　处：《中国陶瓷》2024年第2期28-35,共8页China Ceramics

基　　金：国家电网公司总部科技项目(5500-202024252A-0-0-00)。

摘　　要：压电材料可实现机械能与电能的相互转换,采用增材制造的方式,将具有压电性能的钛酸钡(BaTiO_(3),BT)功能陶瓷材料打造为三维结构。通过对比PDMS、BT/PDMS和三维(BT)/PDMS柔性复合材料的介电频谱测试结果,发现三维结构有助于提升复合材料的介电性能。同时,在一定的循环压力下对比了以上三者的输出电压,表明三维结构能大幅提升复合材料的输出电压,且极化后内部电势场的建立将3D-BT/PDMS的输出电压提升至250mV。可见3D-BT/PDMS复合柔性聚合物具有优异的电能转换能力,在柔性电容器和柔性传感器等领域有巨大的应用潜力。The mutual conversion of mechanical energy and electrical energy could be realized by piezoelectric materials.In this study,barium titanate(BaTiO_(3),BT) functional ceramic materials with piezoelectric properties were fabricated into a three-dimensional structure by means of additive manufacturing.By comparing the dielectric spectrum test results of PDMS,BT/PDMS and three-dimensional(BT)/PDMS flexible composites,it was found that the three-dimensional structure helps to enhance the dielectric properties of the composites.Additionally,the output voltages of the above were compared under a certain cyclic pressure,indicating that the three-dimensional structure significantly increased the output voltage of the composite.And the establishment of an internal potential field after polarization raised the output voltage of 3D-BT/PDMS to 250 mV.Consequently,the flexible 3D-BT/PDMS composite exhibits excellent electrical energy conversion capabilities and holds tremendous application potential in fields such as flexible capacitors and sensors.

关 键 词：压电陶瓷 增材制造 柔性复合 

分 类 号：TQ174.756[化学工程—陶瓷工业]