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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(英文),2020,49(2):661~668.[Wu Jinyu,Du Haiyan,Liu Jiachen,Hu Xiaoxia and 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-Borosilicate glass high emissivity coating with scaly structure and high temperature resistance
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Received:April 04, 2019  Revised:May 12, 2019
DOI:
Key words: high temperature resistant coating with high emissivity  scaly structure  flexibility
Foundation item: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)
Author NameAffiliation
Wu Jinyu,Du Haiyan,Liu Jiachen,Hu Xiaoxia and Li Lingyu  
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Abstract:
      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.