Abstract

Porous materials have gained significant attention in recent years as a class of material exhibiting interesting chemical and physical properties. The existing methods of porosity analysis have limitations that prevent absolute porosity measurement. Hence, a technique independent of surface physical properties alone can give the absolute porosity of the material. The porosity greatly influences the thermal diffusivity of a material. The manuscript is the first report of employing the Sankar–Swapna model for analyzing the porosity variations in carbon allotropic nanofluids. The model helps not only in getting information about the absolute porosity variations among samples, but also suggests morphological modifications through the thermal diffusivity study using the sensitive single-beam thermal lens technique. The variations in thermal diffusivity and absolute porosity values are also correlated to morphological modifications based on the theoretical model and thereby proposing this as a surrogate method for absolute porosity analysis.

中文翻译：

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碳同素异形纳米流体中的绝对孔隙度分析：Sankar–Swapna模型方法

摘要

近年来，多孔材料作为一类表现出令人感兴趣的化学和物理性质的材料而受到了广泛的关注。现有的孔隙度分析方法具有限制绝对孔隙度测量的局限性。因此，仅依赖于表面物理性质的技术可以给出材料的绝对孔隙率。孔隙率极大地影响材料的热扩散率。该手稿是首次采用Sankar-Swapna模型分析碳同素异形纳米流体的孔隙率变化的报告。该模型不仅有助于获取有关样品之间的绝对孔隙度变化的信息，而且还可以通过使用敏感单光束热透镜技术进行的热扩散率研究来提出形态修饰。