Microstructure and mechanism of Al2O3–ZrO2 eutectic coating prepared by combustion-assisted thermal explosion spraying
Microstructure and mechanism of Al2O3–ZrO2 eutectic coating prepared by combustion-assisted thermal explosion spraying
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DOI：
10.1016/j.apsusc.2011.09.125
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发表时间：
2011-12
影响因子：
6.7
通讯作者：
Yongting Zheng;Hongbo Li;Tao Zhou
中科院分区：
文献类型：
--
作者：
Yongting Zheng;Hongbo Li;Tao Zhou
采用Al和Zr(NO3)4粉末的混合物，采用燃烧辅助热爆炸喷涂法制备了al2o3 - zro2共晶薄涂层。涂层的横截面微观结构沿垂直于Cu衬底方向依次表现为非晶、胞状和枝晶结构。根据实验结果分析了涂层结构的形成机理，并通过扫描电镜和透射电镜观察了不同晶体结构的形貌。
Thin Al2O3–ZrO2eutectic coating was produced by combustion-assisted thermal explosion spraying using a mixture of Al and Zr(NO3)4powders. The cross-sectional microstructure of the coating shows successively amorphous, cellular, and dendrite structure along the direction perpendicular to the Cu substrate. The formation mechanism of the coating structure was analyzed based on the experimental results, and the morphology of different crystal structure was observed by SEM and TEM.