以溶胶-凝胶法制备出钛酸锶钡(Ba0.65Sr0.35TiO3)粉体,并对粉体进行表面改性处理,然后将处理和未处理的粉体按不同的比例与聚偏氟乙烯(PVDF)进行复合,用甩胶法做成薄膜样品,对样品进行了介电性能的测试.实验结果表明:复合薄膜的介电常数实测值与理论值符合得较好,随着薄膜中BST粉体比例的增加,复合薄膜的介电常数和介电损耗增大;经表面改性后的BST粉体所制备的复合薄膜与未经改性所制备的薄膜相比,介电常数略有上升,而介电损耗显著下降.
参考文献
| [1] | Dasgupta D K.Polymer-ceramic composite materials with high dielectric constants[J].THIN SOLID FILMS,1988(158):93. |
| [2] | Skinner D P;Newnham K E;Cross L E .Flexible composite transducers[J].Materials Research Bulletin,1978,13:599. |
| [3] | Furukawa T .Piezoelectric properties in the composite systems of polymers and PZT ceramics[J].Journal of Applied Physics,1979,50(07):4904. |
| [4] | Bolt J D;French R H .Polymer/ceramic composites:new properties for electronics[J].Current Advances in Materials and Processes,1988,34:32. |
| [5] | Sinha D;Pillai P K C .Dielectric behaviour of barium titanatepolyvinylidene fluoride composites[J].Journal of Materials Science,1988,23:107. |
| [6] | Newnham K E;Skinner D P;Cross L E .Connectivity and piezoelectric-pyroelectric composites[J].Materials Research Bulletin,1978,13:525. |
| [7] | 杨文,常爱民,杨邦朝.BST/PVDF 0-3型复合材料的热释电特性研究[J].红外技术,2002(02):37-40. |
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