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2002 | 102 | 2 | 199-205
Article title

Preparation and Characterization of d.c.-Plated Nanocrystalline Nickel Deposits

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EN
Abstracts
EN
The microstructure, microhardness, corrosion, and wear resistance of d.c.-plated Ni electrodeposits prepared from different types of electrolyzing Watts-type baths, without or with organic compounds, ceramic powder - SiC and polymer - polytetrafluoroethylene (PTFE), on Cu substrate, which was subsequently removed from the deposits, were investigated. With the change of the type of bath, the deposit grain size was found to decrease markedly, e.g. deposits with an average grain size of about 50 nm could be produced from a bath containing 45 g/dm^3 Ni^2+ ions, 5 g/dm^3 SiC, and 20 g/dm^3 PTFE. The surface morphology on the bath side of the electrodeposited Ni or Ni-SiC-PTFE foils was characteristic of the type of bath, and its roughness correlated well with the observed grain size. Microhardness and wear resistance increased with decreasing grain size, as expected. On discussing the factors controlling deposit grain size, it is concluded that the Ni^{2+} ion content in the bath and the presence of organic compounds may have a decisive role.
Keywords
EN
Year
Volume
102
Issue
2
Pages
199-205
Physical description
Dates
published
2002-08
received
2001-09-23
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv102n207kz
Identifiers
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