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
吴超峰 1龚文 1耿进锋 2崔建业 3秘立鹏 4聂京凯 5何强 5裘旭挺6
作者信息
- 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
- 折叠
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(BaTiO3,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250 mV.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.
Abstract
The mutual conversion of mechanical energy and electrical energy could be realized by piezoelectric materials.In this study,barium titanate(BaTiO3,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Key words
Piezoelectric ceramics/Additive manufacturing/Flexible composites引用本文复制引用
基金项目
国家电网公司总部科技项目(5500-202024252A-0-0-00)
出版年
2024
NETL
NSTL
万方数据