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首页> 外文会议>第七届国际耐火材料学术会议（ISR2016）论文集 >Effect of Asphalt on Structure and Performance of Catalytic Modified Al2O3-C Refractories
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Effect of Asphalt on Structure and Performance of Catalytic Modified Al2O3-C Refractories

机译：沥青对催化改性Al2O3-C耐火材料结构和性能的影响

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摘要

With the development of clean steel and ultra-low carbon steel, combined with the requirements of environmental protection, carbon containing refractories toward low or ultra-low carbonization is the direction of development in refractory field.In order to improve thermal shock stability of low carbon Al2O3-C refractory, we choose three pitches (environmental friendly pitch, mesophase pitch and high-temperature asphalt) to investigate the influence of structure and performance on catalytic modified Al2O3-C refractories and to discuss the influence of asphalt on carbon fiber.The results show that:compared with the high temperature asphalt environmental friendly pitch and mesophase pitch are more conducive to improving cold and high modulus of rupture and thermal shock of Al2O3-C specimens and the thermal shock strength retention rate of 70％.The specimens that add pitch to low carbon Al2O3-C refractories grow into a certain amount of nano carbon fibrous with the help of catalyst.Environmental friendly pitch and mesophase pitch can help to generate much more and long fiber, which can fill part of porosity and make for compact structure.While high-temperature asphalt generates less and short fiber, therefore the filling effect is not obvious and come into being loose structure.
机译：随着清洁钢和超低碳钢的发展，结合环保要求，含碳耐火材料向低碳化或超低碳化方向发展是耐火材料领域的发展方向，以提高低碳热冲击稳定性。 Al2O3-C耐火材料，我们选择三种沥青（环境友好沥青，中间相沥青和高温沥青）来研究结构和性能对催化改性的Al2O3-C耐火材料的影响，并讨论沥青对碳纤维的影响。结果结果表明：与高温沥青相比，环保沥青和中间相沥青更有利于提高Al2O3-C试样的冷，高断裂模量和热冲击，热冲击强度保持率达到70％。在催化剂的帮助下，低碳的Al2O3-C耐火材料成长为一定数量的纳米碳纤维。良好的沥青间距和中间相沥青有助于生成更多，更长的纤维，可以填充部分孔隙，使结构致密。而高温沥青生成的纤维少而又短，因此填充效果不明显并应运而生。松散的结构。

著录项

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  • 作者

    YANG Wengang; YANG Fengling; LI Hongxia; LIU Guoqi; QIAN Fan;

  • 作者单位

    State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd. Luoyang 471039,China;

    State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd. Luoyang 471039,China;

    State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd. Luoyang 471039,China;

    State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd. Luoyang 471039,China;

    State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd. Luoyang 471039,China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;冶金工业;
  • 关键词

    low carbon refractories; microstructure; catalysis; thermal shock;

    机译：低碳耐火材料;显微组织;催化;热冲击;

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