Investigation considers that there is coherent interface betweenCu2O and Cu-Zn matrix. There is not clear interface between Cu2O and Cu-Zn matrix, which shows the viscidity is well.

• 研究认为Cu_2O和Cu-Zn基体呈共格关系,着色膜层与Cu-Zn基体之间没有明显的界面,界面结合良好。