工程科学学报.第43卷.第1期：76-84.2021年1月 Chinese Journal of Engineering,Vol.43,No.1:76-84,January 2021 https://doi.org/10.13374/j.issn2095-9389.2020.05.09.001;http://cje.ustb.edu.cn 纳米技术在镁质耐火材料中应用的研究进展 赵嘉亮”，罗旭东)四，陈俊红)，谢志鹏) 1)辽宁科技大学材料与治金学院，鞍山1140512)北京科技大学材料科学与工程学院，北京1000833)清华大学材料科学与工程学院， 北京100084 ☒通信作者，E-mail:luoxudongs@aliyun.com 摘要利用纳米技术制备复相镁质耐火材料，不仅可以缓解高温工业对高性能镁质材料的需求，而且又能实现镁质耐火材 料的轻质化和多功能化，进而达到提高产品附加值的目的.因此，利用纳米技术制备复相镁质耐火材料具有较高的研究意义， 从镁质耐火材料损毁机制的角度，综述了近年来国内外纳米技术在低碳镁碳质、镁钙质、镁铝质耐火材料中的研究现状和进 展，并且分析了纳米技术在镁质耐火材料中的作用机理，最后指出了纳米技术在镁质耐火材料中应用所面临的挑战和发展 方向. 关键词纳米技术：低碳镁碳质耐火材料：镁钙质耐火材料：镁铝质耐火材料：性能 分类号TQ175.7 Progress in the application of nanotechnology to magnesia refractories ZHAO Jia-liang,LUO Xu-dong CHEN Jun-hong,XIE Zhi-peng 1)School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,China 2)School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China 3)School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China Corresponding author,E-mail:luoxudongs@aliyun.com ABSTRACT Magnesia refractories are promising high-temperature structural materials known for their high melting point,excellent high-temperature stability,and promising mechanical properties,which make them suitable for numerous high-temperature applications in steel manufacturing,metallurgy,building materials,and ceramics.However,traditional magnesia refractories do not meet the requirements established for advanced refractories.Low-carbon magnesia carbon refractories have several disadvantages,including poor slag and thermal shock resistances,owing to their reduced carbon content.Magnesia calcia refractories have poor hydration resistance due to the presence of free calcium oxide.Moreover,magnesia alumina refractories have poor sintering and mechanical properties owing to their volumes and thermal expansion mismatch.Therefore,the techniques used to prepare high-performance magnesia refractories have attracted widespread attention.Recently,nanotechnology has emerged as a promising new technology that is widely used improve refractory yield and in many other applications because of its excellent surface properties,small size,quantum dimensions,and macro quantum effects.The preparation of magnesia composite refractories using nanotechnology relieves the demand for high-performance magnesia refractories by high-temperature industries and also contributes to the development of lightweight and functional value-added products.Therefore,the use of nanotechnology in the preparation of magnesia composite refractories has great significance for the enhancement of their properties.In this paper,the research status and progress of nanotechnology in recent years with respect to the damage mechanisms in low-carbon magnesia-carbon refractories,magnesia calcia refractories,and magnesia alumina refractories in China and overseas were reviewed.In addition,the interaction mechanisms were analyzed,the challenges and developments in the 收稿日期：2020-05-09 基金项目：国家白然科学基金资助项目(51772139)：菱镁矿特色资源高效利用制备高性能耐火材料相关基础研究(U1908227)纳米技术在镁质耐火材料中应用的研究进展 赵嘉亮1)，罗旭东1) 苣，陈俊红2)，谢志鹏3) 1) 辽宁科技大学材料与冶金学院，鞍山 114051    2) 北京科技大学材料科学与工程学院，北京 100083    3) 清华大学材料科学与工程学院， 北京 100084 苣通信作者，E-mail：luoxudongs@aliyun.com 摘    要    利用纳米技术制备复相镁质耐火材料，不仅可以缓解高温工业对高性能镁质材料的需求，而且又能实现镁质耐火材 料的轻质化和多功能化，进而达到提高产品附加值的目的. 因此，利用纳米技术制备复相镁质耐火材料具有较高的研究意义. 从镁质耐火材料损毁机制的角度，综述了近年来国内外纳米技术在低碳镁碳质、镁钙质、镁铝质耐火材料中的研究现状和进 展，并且分析了纳米技术在镁质耐火材料中的作用机理，最后指出了纳米技术在镁质耐火材料中应用所面临的挑战和发展 方向. 关键词    纳米技术；低碳镁碳质耐火材料；镁钙质耐火材料；镁铝质耐火材料；性能 分类号    TQ175.7 Progress in the application of nanotechnology to magnesia refractories ZHAO Jia-liang1) ，LUO Xu-dong1) 苣 ，CHEN Jun-hong2) ，XIE Zhi-peng3) 1) School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China 2) School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 3) School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 苣 Corresponding author, E-mail: luoxudongs@aliyun.com ABSTRACT    Magnesia refractories are promising high-temperature structural materials known for their high melting point, excellent high-temperature stability, and promising mechanical properties, which make them suitable for numerous high-temperature applications in  steel  manufacturing,  metallurgy,  building  materials,  and  ceramics.  However,  traditional  magnesia  refractories  do  not  meet  the requirements established for advanced refractories. Low-carbon magnesia carbon refractories have several disadvantages, including poor slag and thermal shock resistances, owing to their reduced carbon content. Magnesia calcia refractories have poor hydration resistance due to the presence of free calcium oxide. Moreover, magnesia alumina refractories have poor sintering and mechanical properties owing to their volumes and thermal expansion mismatch. Therefore, the techniques used to prepare high-performance magnesia refractories have attracted widespread attention. Recently, nanotechnology has emerged as a promising new technology that is widely used improve refractory yield and in many other applications because of its excellent surface properties, small size, quantum dimensions, and macro quantum effects. The preparation of magnesia composite refractories using nanotechnology relieves the demand for high-performance magnesia refractories by high-temperature industries and also contributes to the development of lightweight and functional value-added products.  Therefore,  the  use  of  nanotechnology  in  the  preparation  of  magnesia  composite  refractories  has  great  significance  for  the enhancement of their properties. In this paper, the research status and progress of nanotechnology in recent years with respect to the damage  mechanisms  in  low-carbon  magnesia –carbon  refractories,  magnesia  calcia  refractories,  and  magnesia  alumina  refractories  in China  and  overseas  were  reviewed.  In  addition,  the  interaction  mechanisms  were  analyzed,  the  challenges  and  developments  in  the 收稿日期: 2020−05−09 基金项目: 国家自然科学基金资助项目（51772139）；菱镁矿特色资源高效利用制备高性能耐火材料相关基础研究（U1908227） 工程科学学报，第 43 卷，第 1 期：76−84，2021 年 1 月 Chinese Journal of Engineering, Vol. 43, No. 1: 76−84, January 2021 https://doi.org/10.13374/j.issn2095-9389.2020.05.09.001; http://cje.ustb.edu.cn