通过冷喷涂技术制备了V(Cu2O)分别为0％、10％、20％和30％的4种Cu-Cu2O涂层.在Philips XL30型环境扫描电镜下观察发现涂层的致密度高且较为均匀.这是由于Cu颗粒能通过塑性变形,以机械咬合和冶金结合的方式紧密地结合在一起形成涂层.同时,Cu2O颗粒填充了较大的Cu颗粒之间的缝隙,从而使得涂层孔隙率随着Cu2O含量的增加略有降低.Cu2O增大了碰撞沉积过程中的摩擦,增强了热软化效应,促进Cu颗粒的微区熔化和冶金结合,进而使得涂层沉积效果有所提升.
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