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首页> 外文期刊>Journal of Materials Science. Materials in Electronics >Study on microstructure, piezoelectric and dielectric properties of 3-3 porous PZT composites
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Study on microstructure, piezoelectric and dielectric properties of 3-3 porous PZT composites

机译：3-3多孔PZT复合材料的微观结构，压电和介电性能研究

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Porous lead zirconate titanate (PZT) composites are used for low frequency hydrophones due to their high hydrostatic figure of merit, and low sound velocity. Porous PZT composite materials manufactured using varied percentage of polymethyl methacrylate (PMMA) as a pore-forming agent was studied, to understand the effect of PMMA on microstructure and dielectric properties. Properties such as the density, porosity, transverse piezoelectric coefficient, dielectric constant, and dielectric loss factor were studied as a function of PMMA. Porous PZT composites (with 30% PMMA) show lower piezoelectric transverse coefficient (-78 pC/N) and dielectric constant (116) as compared to homogeneous PZT. At a frequency of 1 MHz, the dielectric constant decreases and dielectric loss increases with increase in PMMA. This paper describes the effect of polymethyl methacrylate (PMMA) as a pore-forming agent on dielectric properties and microstructure of porous PZT composites.
机译：多孔锆钛酸铅（PZT）复合材料因其高静液压性能和低声速而用于低频水听器。研究了使用不同百分比的聚甲基丙烯酸甲酯（PMMA）作为成孔剂制造的多孔PZT复合材料，以了解PMMA对微观结构和介电性能的影响。研究了诸如密度，孔隙率，横向压电系数，介电常数和介电损耗因子等特性与PMMA的关系。与均质PZT相比，多孔PZT复合材料（含30％PMMA）显示出较低的压电横向系数（-78 pC / N）和介电常数（116）。在1 MHz的频率下，介电常数随PMMA的增加而降低，介电损耗随PMMA的增加而增加。本文描述了聚甲基丙烯酸甲酯（PMMA）作为成孔剂对多孔PZT复合材料介电性能和微观结构的影响。

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