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	Effects of nickel ion contents on electrodeposition, composition, structure and properties of palladium-nickel alloys
	Yue, J. P. ; Yang, F. Z. ; Tian, Z. Q. ; Zhou, S. M. ; Zhou SM(周绍民)
刊名	http://dx.doi.org/10.1179/174591911X13082997023954
	2011-09
关键词	RESISTANCE ABSORPTION FILMS
英文摘要	National Nature Science Foundation of China [20873114, 20833005]; National Basic Research Program of China [2009CB930703]; The effects of nickel ion contents on the electrodeposition, composition, structure and properties of palladium-nickel alloys were studied from a nearly neutral Pd(NH(3))(2)Cl(2)-NiSO(4).6H(2)O bath by adjusting the Ni(2+)/Pd(2+) ion mole ratios. The results demonstrate that coatings with 17.1-44.0 wt-% Ni can be successfully electrodeposited by simply adjusting the Ni(2+)/Pd(2+) ion mole ratios from 0.5:1 to 2.5:1. The coatings are bright, pore-free and crack-free with fine and compact grains. The structure of the coatings is a solid solution in a face-centred cubic structure; its lattice constant gradually decreases with a corresponding increase in the Ni content. The coatings exhibit a comparable corrosion resistance in a 3.5% NaCl solution, where the corrosion potentials E(corr) are between -0.010 and -0.064 V(saturated calomel electrode). Corrosion current densities j(corr) slightly increased from 9.8 to 21.3 mu A cm(-2), with the Ni content increasing from 17.1 to 44.0 wt-%. The microhardness of the coatings increased with a corresponding increase in their Ni contents, and shows the highest value of 511 kg mm(-2) with 44.0 wt-%Ni. The coatings exhibit comparable contact resistances of 0.2-0.4 m Omega.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/61578]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Yue, J. P.,Yang, F. Z.,Tian, Z. Q.,et al. Effects of nickel ion contents on electrodeposition, composition, structure and properties of palladium-nickel alloys[J]. http://dx.doi.org/10.1179/174591911X13082997023954,2011.
APA	Yue, J. P.,Yang, F. Z.,Tian, Z. Q.,Zhou, S. M.,&周绍民.(2011).Effects of nickel ion contents on electrodeposition, composition, structure and properties of palladium-nickel alloys.http://dx.doi.org/10.1179/174591911X13082997023954.
MLA	Yue, J. P.,et al."Effects of nickel ion contents on electrodeposition, composition, structure and properties of palladium-nickel alloys".http://dx.doi.org/10.1179/174591911X13082997023954 (2011).

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