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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Effect of SiC content on viscosity and thermal properties of foam ceramic prepared from molybdenum tailings
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Effect of SiC content on viscosity and thermal properties of foam ceramic prepared from molybdenum tailings

机译：SiC含量对钼尾矿制备的泡沫陶瓷粘度和热性能的影响

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摘要

A foam ceramic was prepared using molybdenum tailings (97-99.5 wt%) as the raw material and SiC as the foaming agent. The results showed that with increasing SiC content, the liquid-phase viscosity decreased, which in turn enhanced the overall expansion of the system, leading to a decrease in the thermal conductivity. The effects of the SiC content on the bulk density, porosity, pore size, and thermal conductivity were investigated in detail. Moreover, the experimental results were compared with several analytical models, and we found that the parallel model closely agreed with the predictions. The sample prepared via sintering at 1150 degrees C using 2.5 wt% SiC and molybdenum tailings exhibited a low bulk density of 0.37 g/cm(3), high porosity of 85.14%, and low thermal conductivity of 0.22W/m.K. Thus, the application of molybdenum tailings in the production of foamed materials is considered to have potential economic and environmental advantages.
机译：使用钼尾矿（97-99.5wt％）作为原料和SiC作为发泡剂制备泡沫陶瓷。 结果表明，随着SiC含量的增加，液相粘度降低，这又增加了系统的整体膨胀，导致导热率降低。 详细研究了SiC含量对堆积密度，孔隙率，孔径和导热率的影响。 此外，将实验结果与几种分析模型进行了比较，我们发现并行模型与预测密切合法。 通过烧结在1150℃下使用2.5wt％SiC和钼尾矿制备的样品表现出低堆积密度为0.37g / cm（3），高孔隙率为85.14％，导热率为0.22℃/ m。。 因此，认为钼尾矿在泡沫材料的生产中被认为具有潜在的经济和环境优势。

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