武劲宇,杜海燕,刘家臣,胡小侠,李铃玉.MoSi2-硼硅玻璃鳞片状高发射率耐高温涂层[J].稀有金属材料与工程,2020,49(2):661~668.[Wu Jinyu,Du Haiyan,Liu Jiachen,Hu Xiaoxia,Li Lingyu.MoSi2-Borosilicate glass high emissivity coating with scaly structure and high temperature resistance[J].Rare Metal Materials and Engineering,2020,49(2):661~668.]
MoSi2-硼硅玻璃鳞片状高发射率耐高温涂层
投稿时间:2019-04-04  修订日期:2019-05-12
中文关键词:  高辐射率耐高温涂层  鳞片状结构  柔韧性
基金项目:国家自然科学基金资助(项目号51472176),国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      为了从本质上改变传统高辐射率耐高温涂层刚度大、脆性明显的问题,受自然界中蛇皮结构的启发,本文将浆料法与溶胶-凝胶法相结合,采用硅溶胶作为溶剂,MoSi2作为发射剂,硼硅玻璃作为高温粘结剂,成功制备出具有鳞片状结构的柔性高发射率耐高温涂层。与相同组成、面密度以及烧结制度的致密涂层相比,鳞片状涂层在保障其高的发射剂含量与发射率的同时,具备了非常高的柔韧性,包括抗接触损伤、抗热震以及弯曲强度在内的多个力学性能均得到了不同程度幅度的提升。
MoSi2-Borosilicate glass high emissivity coating with scaly structure and high temperature resistance
英文关键词:high temperature resistant coating with high emissivity  scaly structure  flexibility
英文摘要:
      The traditional high temperature resistant coating with high emissivity have the characteristics of large rigidity and obvious brittleness. In order to change these properties in essence, we successfully have produced a kind of scaly and flexible coating with high emissivity and high temperature resistance inspired by structure of the snakeskin in nature. We combine slurry method with sol-gel method, and use silica sol as solvent, MoSi2 as emittance agent and borosilicate glass as high temperature binder. Compared with the dense coating with the same composition, surface density and sintering process, the scaly coating have high flexibility while ensuring high emittance agent content and emissivity. The mechanical properties, including contact damage resistance, thermal shock resistance and bending strength, have been improved in varying degrees.
作者单位E-mail
武劲宇 天津大学材料科学与工程学院 328018639@qq.com 
杜海燕 天津大学材料科学与工程学院  
刘家臣 天津大学材料科学与工程学院  
胡小侠 天津大学材料科学与工程学院  
李铃玉 天津大学材料科学与工程学院  
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