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铁铬系高温红外辐射涂料的制备及性能

, PP. 196-200

Keywords: 红外辐射涂料,结合强度,辐射率,抗热震性

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Abstract:

自制了包括铁铬系辐射粉料、粘结剂、添加剂、助烧剂的高温红外辐射涂料,并对涂料进行了烧结实验;利用热重差热分析和SEM、XRD分析对涂料烧结过程中的显微结构变化及物相组成进行了研究,利用电子探针对涂层与高铝耐火砖的结合界面进行了线扫描分析。测试结果表明,涂料经1500℃烧结后,辐射粉料以尖晶石相分散在铝硅基体相中;涂料在2~18μm的平均辐射率达到0.89。电子探针线扫描分析和热震实验显示,该涂料与耐火砖形成牢固的结合层,使涂层具有良好的抗热震性。

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