Pyroelectric effect enhancement in laminate composites under short circuit condition
Pyroelectric effect enhancement in laminate composites under short circuit condition
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DOI：
10.1063/1.3264623
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发表时间：
2009-12-01
影响因子：
3.2
通讯作者：
Huang, Z.
中科院分区：
文献类型：
--
作者：
Chang, H. H. S.;Whatmore, R. W.;Huang, Z.
采用解析建模和数值模拟相结合的方法研究了层状复合材料在短路条件下的热释电系数。已经确定了可用于确定其热释电系数增强证书的各种热释电/非热释电材料对的指示器。将6种热释电材料与6种非热释电/弹性材料配对，研究了它们的热释电系数、增强潜力和效率优值系数。在36对中表现最好的是厚度比(R)小于0.09的PZT5H-氯化聚氯乙烯热塑性塑料(CPVC)和厚度比(R)大于0.09的PZT5H-锌，两者在R=0.09时的总热释电系数约为-20x10(-4)Cm(-2)K-1，对应于系数增加约300%。与PZT5H本身相比，PZT5H-CPVC的热释电系数最大提高了800%，而效率优值系数显示其每给定热刺激的电响应输出增加了20倍。
The pyroelectric coefficients of laminate composites under short circuit condition have been investigated by analytical modeling and numerical simulations. Indicators for various pyroelectric/non-pyroelectric material pairs that can be utilized to determine their pyroelectric coefficient enhancement credentials have been identified. Six pyroelectric materials were paired with six non-pyroelectric/elastic materials and their pyroelectric coefficient enhancement potential and figure of merit for efficiency were investigated. The best performing partnership out of the 36 pairs was lead zirconate titanate (PZT5H)-chlorinated polyvinyl chloride thermoplastic (CPVC) for thickness ratios (R) below 0.09 and PZT5H-zinc for R larger than 0.09 with both demonstrating total pyroelectric coefficient of approximately -20x10(-4) C m(-2) K-1 at R=0.09, which corresponds to approximately 300% increase in the coefficient. PZT5H-CPVC also showed maximum of 800% rise in the pyroelectric coefficient while figure of merit for efficiency indicated up to twentyfold increase in its electrical response output per given thermal stimuli when compared to that of PZT5H by itself.