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为解决传统高温化学镀镍所存在的诸多问题,在中温(70℃)酸性条件下,以硫酸镍为主盐,次磷酸钠为还原剂,乙酸钠为缓冲剂,就乳酸、冰乙酸及二者复合的配位剂对黄铜中温化学镀Ni-P合金镀层性能的影响进行了研究.结果表明:复合配位剂中的乳酸主要起配位剂的作用,冰乙酸主要起缓冲剂的作用;采用复合配位剂的镀液的沉积速率与采用单一配位剂的镀液相当,但稳定性好,镀层孔隙率低,乳酸7.5 mL/L+冰乙酸13.0mL/L时所获得的镀层光亮平整,颗粒细小,均匀致密,且与基体结合良好,显微硬度可达515HV,孔隙率低于1cm-2,具有较好的耐磨性和耐蚀性.
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表面技术
ISSN: 1001-3660
CN: 50-1083/TG
Year: 2013
Issue: 2
Volume: 42
Page: 26-30
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 0
Affiliated Colleges: