采用XRD和SEM研究了电沉积时间对电解镍的择优生长方向、晶粒大小、表面形貌和截面组织的影响.结果表明,随着电沉积时间的延长,电解镍的晶体生长方向会发生变化,由最初的(111)(200)面织构变为16h后的(220)面织构;随着沉积过程的进行,电解镍的微观表面形貌由棱锥状慢慢变为胞状,生长机制由开始时的螺旋位错生长变为累积长大机制;电解镍的横截面组织由细晶粒层和较粗大晶粒层构成,属于非均匀沉积层,大部分晶粒呈柱状生长,并且垂直于始极片,晶粒大小沿沉积厚度呈阶梯状分布.
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