Impact of raw material on thermo‐physical properties of carbon foam

Mohammad Rajab Al‐Majali, Mingcong Zhang, Yahya T. Al‐Majali, Jason P. Trembly
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Abstract

Carbon foam materials are currently used in several industrial and engineering applications due to their outstanding properties. The properties of carbon foam can be altered through the manufacturing processes applied in specific applications. In this paper, we collected and analyzed four samples manufactured by CFOAM and one sample developed by Ohio University (OU) to understand the behaviour of this material and determine its properties. We utilized advanced techniques to experimentally measure and determine the following properties: pore size and volume, porosity, specific surface area, mass, density, and thermal conductivity. Among the samples, the low‐porosity CFOAM (CF35) and the OU sample exhibited higher specific surface areas and densities compared to the others. However, CF35 demonstrated the highest thermal conductivity, while OU displayed the lowest. As a result, CF35 emerges as the optimal choice for applications requiring high‐rate heat transfer, while the remaining CFOAM samples are well‐suited for lightweight applications. Thus, OU foam proves to be a highly suitable candidate for insulation applications such as building sidewalls.
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原材料对碳泡沫热物理性能的影响
碳泡沫材料因其出色的性能,目前已被广泛应用于多个工业和工程领域。在具体应用中,碳泡沫的特性可通过制造工艺发生改变。在本文中,我们收集并分析了 CFOAM 生产的四个样品和俄亥俄大学(OU)开发的一个样品,以了解这种材料的行为并确定其特性。我们利用先进的技术,通过实验测量并确定了以下特性:孔径和体积、孔隙率、比表面积、质量、密度和热导率。与其他样品相比,低孔隙率 CFOAM(CF35)和 OU 样品表现出更高的比表面积和密度。然而,CF35 的热导率最高,而 OU 的热导率最低。因此,CF35 成为需要高速传热的应用的最佳选择,而其余 CFOAM 样品则非常适合轻质应用。因此,事实证明 OU 泡沫非常适合建筑侧墙等隔热应用。
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