首页> 外文期刊>Interceram: International Journal for Bricks, Structural Clay Products, Refractories, Pottery, Fine Ceramics, Abrasives and Special Ceramics >Development of Improved Quality Magnesia Carbon Brick by Incorporation of Industrial Grade Functionalised Multi-Walled Carbon Nanotube
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Development of Improved Quality Magnesia Carbon Brick by Incorporation of Industrial Grade Functionalised Multi-Walled Carbon Nanotube

机译:工业级功能化多墙碳纳米管掺入改进优质氧化镁碳砖

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摘要

A growing requirement to make low or ultra-low carbon steel has resulted in strong demand for lower carbon content in the MgO-C refractory lining materials of metallurgical vessels. Incorporation of carbon nanostructure materials is expected to reduce the total carbon content of refractory bricks due to their very high specific surface area compared to other carbon precursor materials. It will also help to significantly enhance both the corrosion and thermo-mechanical behaviour of refractories. Different compositions were designed to evaluate the effect of using industrial grade functionalised multi-walled carbon nanotube (F-MWCNT) in MgO-C refractory. Samples containing an appropriate combination of graphite and F-MWCNT produced the most impressive results. Based on the study, brick was developed for a panel trial in a 300-t ladle of BSL (Bokaro Steel Plant) at SAIL (Steel Authority of India Limited). The average erosion rate of carbon nanostructure-containing MgO-C brick refractory was observed to be about 28 mass-% less than that of conventional MgO-C bricks.
机译:制造低或超低碳钢的不断增长的要求导致冶金容器MgO-C耐火衬里材料中较低的碳含量强劲。预期碳纳米结构材料预计与其他碳前体材料相比,由于其非常高的比表面积,预计碳纳米结构材料将减少耐火砖的总碳含量。它还将有助于显着提高耐火材料的腐蚀和热机械行为。设计不同的组合物来评估使用工业级功能化多壁碳纳米管(F-MWCNT)在MgO-C耐火材料中的效果。含有适当组合的石墨和F-MWCNT的样品产生了最令人印象深刻的结果。基于该研究,在帆船(印度钢铁机构)的300楼的BSL(Bokaro Steel Plant)中开发了砖块的小组试验。含碳纳米结构的MgO-C砖耐火的平均侵蚀率观察到比传统MgO-C砖的约28质量%。

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