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Effect of graphite on poling time and electrical properties of barium zirconate titanate-Portland cement composites

机译:石墨对锆钛酸盐 - 波特泥泥泥泥泥复合材料极化时间和电学性能的影响

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摘要

The 0-3 connectivity piezoelectric ceramic-cement composites of barium zirconate titanate (BaZr0.05Ti0.95O3, BZT) and Portland cement were developed for smart concrete structure applications. In this study, graphite powder was added at 0-2.0% by volume into the composites in order to improve the poling process of 0-3 connectivity cement-based piezoelectric composites. Microstructure, dielectric properties (?(r)), piezoelectric coefficient (d(33)), and conductivity were studied. The results indicated that the highest piezoelectric coefficient of 30.76 pC/N was found at 0.5% by volume of graphite content. Moreover, total poling time was reduced when graphite was added.
机译:为智能混凝土结构应用开发了0-3锆钛酸钡(Bazr0.05Ti0.95O3,BZT)和波特兰水泥的0-3个连接压电陶瓷 - 水泥复合材料。 在该研究中,将石墨粉末在0-2.0%(重量)中加入复合材料中,以改善0-3个连接水泥基压电复合材料的抛光过程。 微观结构,介电性质(α(R)),压电系数(D(33))和导电性。 结果表明,最高压电系数为30.76pc / n的石墨含量为0.5%。 此外,加入石墨时,总极化时间降低。

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