Effects of current density on the structure of Ni and Ni-Mn electrodeposits.
- Sandia National Laboratories, Albuquerque, NM
Grain size and texture of Ni electrodeposited from sulfamate baths depend greatly on current density. Increasing grain size is observed with increasing current density and the deposit texture changes from (110) at current densities lower than 5 mA cm{sup -2} to (100) for higher current densities. Co-deposition of Mn modifies the deposit structure by favoring the growth of the (110) texture and decreasing the average grain size even as the current density increases. While the average Mn film content increases with increasing current density, local Mn concentrations are a more complex function of deposition parameters, as indicated by atom probe tomography measurements. In both direct-current plated and pulse plated films, large variations on a nanometer scale in local Mn concentration are observed.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 970706
- Report Number(s):
- SAND2005-4546J
- Journal Information:
- Proposed for publication in the Journal of the Applied Electrochemistry., Journal Name: Proposed for publication in the Journal of the Applied Electrochemistry.
- Country of Publication:
- United States
- Language:
- English
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