Flexoelectric characterization of dielectrics under tensile, com pressive, and flexural loads by non-contact Kelvin probe measurements

Ezequiel Lorenzett; Kelly S. Moreira; Yan A. Santos da Campo; Dylan Mehler; Ana Luisa Devens; Maciej A. Noras; Thiago A. L. Burgo

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Flexoelectric characterization of dielectrics under tensile, com pressive, and flexural loads by non-contact Kelvin probe measurements

机译：柔性释放介质在拉伸探针测量下拉伸，COM压力和弯曲载荷下的电介质

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Non-contact electrostatic measurements were used to the characterization of flexoelectric potentials in dielectrics under tensile, compressive, and flexural loads. Kelvin probes are capable to detect localized potential gradients on stretched natural latex that would hardly be detected at the macroscopic scale using standard methods for flexoelectric characterization. The high deformability of rubbers under tensile (or compressive) loads or dielectrics in fully folded states during flexural tests is a really challenging task for measurements using attached or compliant electrodes to detect flexoelectricity but is easily assessed with Kelvin probes. Moreover, non-contact electrostatic measurements are effective to avoid triboelectric effects, which are important sources of electricity on contacting surfaces.

机译：非接触式静电测量用于在拉伸，压缩和弯曲荷载下的介质中表征柔性电位。 Kelvin探针能够在拉伸的天然乳胶上检测局部潜在梯度，几乎不会使用标准方法在宏观测量中检测到柔性电解。在弯曲试验期间完全折叠状态下的拉伸（或压缩）负载或电介质下的橡胶的高可变形性是使用附接或柔顺电极进行测量以检测柔性电性的真正具有挑战性的任务，而是用kelvin探针容易地评估。此外，非接触式静电测量是有效的，以避免摩擦效应，这是接触表面上的重要电源。

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来源
《Journal of Applied Physics》 |2021年第20期|204502.1-204502.8|共8页
作者
Ezequiel Lorenzett; Kelly S. Moreira; Yan A. Santos da Campo; Dylan Mehler; Ana Luisa Devens; Maciej A. Noras; Thiago A. L. Burgo;
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Department of Chemistry Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

Department of Chemistry Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

Department of Physics Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

Department of Chemistry Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

Department of Chemistry Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

Department of Engineering Technology and Construction Management UNC Charlotte 9201 University City Blvd. Charlotte North Carolina 28223-0001 USA;

Department of Chemistry Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil Department of Physics Federal University of Santa Maria Av. Roraima 1000 Santa Maria/RS CEP 97105-900 Brazil;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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Flexoelectric characterization of dielectrics under tensile, com pressive, and flexural loads by non-contact Kelvin probe measurements

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