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Electroplating of High Tungsten Content Ni/W Alloys
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Electroplating of High Tungsten Content Ni/W Alloys
Electroplating of High Tungsten Content Ni/W Alloys
OY
O. Younes
O. Younes
E. Gileadi
E. Gileadi
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1 January 1999
journal article
Published by
The Electrochemical Society
in
Electrochemical and Solid-State Letters
Vol. 3
(12)
,
543-545
https://doi.org/10.1149/1.1391203
Abstract
Induced codeposition of tungsten with nickel from aqueous solutions of sodium tungstate was studied. Ammonia is commonly added to such plating baths to adjust the , but its role as a ligand for nickel complexes is usually ignored. Removing ammonia helped to increase the tungsten content of the alloy to . First indications for the formation of an amorphous alloy at intermediate concentrations of tungsten were observed. It is shown that the reported effect of temperature on the composition of the alloy is due to the removal of ammonia from solution. In its absence, the tungsten content of the alloy plated from a given solution is essentially independent of temperature. ©2000 The Electrochemical Society
Keywords
SODIUM
NICKEL
ELECTROPLATING
AQUEOUS
CODEPOSITION
PLATED
TUNGSTEN CONTENT
IGNORED
NI/W
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Open Access
Cited by 101 articles