Abstract 3-3 PZT/carbon black/epoxy resin composite piezoelectric ceramics were synthesized by an organic foam impregnation combined with carbon black composite process. This composite exhibits excellent piezoelectric performance. Block porous ceramics were prepared by impregnating sponges in different proportion of ceramic paste after treatment. In order to improve the piezoelectric performance of the composite, the porous ceramic skeleton was conducted original pre-polarization process. The effectiveness of the pre-polarization process was verified by compared with the properties before and after pre-polarization. At the same time, a certain mass ratio of the carbon black phase is dispersed into compounding epoxy resin to improve the conductivity of the epoxy phase. This further reduces the difficulty of polarization and improves the piezoelectric performance. The influence of the content and dispersivity of the carbon black and ceramic phase on the performance was discussed. When the carbon black phase in the sample is 0.05 wt%, and the ceramic phase ratio in the slurry is 80 wt%, the composite achieves an excellent piezoelectric performance with a piezoelectric coefficient d33 of 87 pC/N. With the good dielectric and ferroelectric properties, low preparation cost, and a simple process, the composite has broad application prospects in the field of piezoelectric power generation and flexible wearable devices in the future.

中文翻译：

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3-3复合压电材料的制备工艺及其对性能的影响

摘要 3-3 采用有机泡沫浸渍结合炭黑复合工艺合成了PZT/炭黑/环氧树脂复合压电陶瓷。这种复合材料表现出优异的压电性能。将海绵浸渍在不同比例的陶瓷糊处理后制备块状多孔陶瓷。为了提高复合材料的压电性能，对多孔陶瓷骨架进行了独创的预极化过程。通过与预极化前后的性能对比，验证了预极化过程的有效性。同时，将一定质量比的炭黑相分散到复合环氧树脂中，以提高环氧树脂相的导电性。这进一步降低了极化的难度，提高了压电性能。讨论了炭黑和陶瓷相的含量和分散性对性能的影响。当样品中炭黑相为0.05 wt%，浆料中陶瓷相比例为80 wt%时，复合材料具有优异的压电性能，压电系数d33为87 pC/N。该复合材料具有良好的介电和铁电性能，制备成本低，工艺简单，未来在压电发电和柔性可穿戴设备领域具有广阔的应用前景。浆料中陶瓷相的比例为80 wt%，复合材料具有优异的压电性能，压电系数d33为87 pC/N。该复合材料具有良好的介电和铁电性能，制备成本低，工艺简单，未来在压电发电和柔性可穿戴设备领域具有广阔的应用前景。浆料中陶瓷相的比例为80 wt%，复合材料具有优异的压电性能，压电系数d33为87 pC/N。该复合材料具有良好的介电和铁电性能，制备成本低，工艺简单，未来在压电发电和柔性可穿戴设备领域具有广阔的应用前景。