金属-金刚石共沉积复合镀层,在不同应用领域(如提高耐磨性、自润滑性、切削性及弥散强化效果等)已得到广泛关注.详述了金刚石的嵌入对复合镀层的影响及其原因.试验发现,金刚石的嵌入恶化了复合镀层胎体的微观结构,使得胎体晶粒粗化、镀层和颗粒结合部出现间隙、镀层表面起伏不平并出现节瘤、沟谷及金刚石颗粒表面的过度包镶等现象.分析发现,以上现象是金刚石晶体内部金属包裹体的磁性,对运动的阳离子产生洛仑兹力作用,从而影响电沉积过程的结果.
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