Abstract A hot model study was done to investigate the progress of SiC formation via carbothermal route in the Acheson process. Experiments were carried out in a parametrically controlled medium-scale resistance furnace with the raw materials (silica and carbon) in the stoichiometric ratio. The morphological analysis of the formed product at different radial and angular locations was carried out by XRD and SEM. Whereas, the chemical analysis was used to analyze the sample quantitively which gave a radial and angular map of the amount of SiC formation. The temperature measurement at various locations indicates that it has a significant influence on SiC formation. Whereas, the stoichiometric disorder in the product showed the loss of carbon in the process and silica impurity in the formed SiC. The Porosity measurement shows strong variation from the center to the periphery. The results of this study would be beneficial for the current mass production of SiC.

中文翻译：

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Acheson 过程中通过碳热还原形成碳化硅：热模型研究

摘要 进行了热模型研究，研究了Acheson工艺中通过碳热途径形成SiC的过程。实验在参数控制的中型电阻炉中以化学计量比的原材料（二氧化硅和碳）进行。通过XRD和SEM对成型产品在不同径向和角度位置进行形态分析。而化学分析用于定量分析样品，从而给出 SiC 形成量的径向和角度图。不同位置的温度测量表明它对 SiC 的形成有显着影响。然而，产物中的化学计量紊乱显示了过程中碳的损失和形成的 SiC 中的二氧化硅杂质。孔隙度测量显示从中心到外围的强烈变化。这项研究的结果将有利于当前 SiC 的大规模生产。