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Impression deformation of carbon-microsphere and polytetrafluoroethylene composite

机译：碳微球和聚四氟乙烯复合材料的印模变形

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摘要

Carbon-based materials have been extensively used in the devices and systems for energy storage, catalysis, etc. The mechanical behavior of the carbon-based materials plays an important role in the performance and reli-ability of the devices and systems. In this work, we use impression test to investigate the deformation behavior of carbon-microsphere and polytetrafluoroethylene composite, in which the carbon microspheres are fabricated from high-fructose com syrup via hydrothermal process. The three-parameter Weibull model is used to analyze the contact modulus, maximum impression depth and energy dissipation per impression cycle. The impression modulus, maximum impression depth and dissipated energy increase with the increase of the impression load and holding time, which are due to impression-induced consolidation of the carbon-sphere-based composite. A simple relation between the Youngs modulus of the carbon-microsphere-based composite and the ratio of the maximum impression depth to the sample thickness is developed and supported by the experimental results.
机译：碳基材料广泛用于储能，催化等的装置和系统中。基于碳基材料的力学行为在装置和系统的性能和Reli-Lifeion中起着重要作用。在这项工作中，我们使用印模测试来研究碳微球和聚四氟乙烯复合材料的变形行为，其中碳微球通过水热法制备高果糖COM糖浆制成。三参数Weibull模型用于分析每个印模循环的接触模量，最大压印深度和能量耗散。随着印模载荷和保持时间的增加，压印模量，最大压印深度和耗散能量增加，这是由于印模诱导的碳 - 球基复合材料的固结。基于碳 - 微球基复合材料的杨氏模量与样品厚度的最大印模深度的比率之间的简单关系是由实验结果支持的。

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