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首页> 外文期刊>Journal of Thermophysics and Heat Transfer >Thermal Characterization of a Multilayer Material Through the Flash Method
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Thermal Characterization of a Multilayer Material Through the Flash Method

机译：通过闪光法对多层材料进行热表征

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摘要

The extension of the heat pulse method, commonly used for the measurement of the diffusivity of homogeneous isotropic materials, to the characterization of multiplayer structures that can be found in electronic boards, for example, is examined. Both models and experimental estimations of thermophysical property measurement are presented for the diffusivity in the thickness direction, for interface contact resistance (glue) characterization, and for deposits on substrates. A strong emphasis is placed on sensitivity analysis and the type of thermal parameter that can be reached in practice for a given experiment. Estimation of the in-plane thermal diffusivity of possible anisotropic flat-plate samples through a nonhomogeneous pulse excitation and infrared camera measurements are presented.
机译：检验了通常用于测量均质各向同性材料扩散率的热脉冲法在表征电子板中多层结构方面的应用。给出了热物理性质测量的模型和实验估计值，用于厚度方向的扩散率，界面接触电阻（胶水）表征以及基底上的沉积物。重点放在灵敏度分析和给定实验的实践中可以达到的热参数类型上。提出了通过非均匀脉冲激励和红外热像仪测量可能的各向异性平板样品的面内热扩散率的方法。

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