ELECTROCHEMICAL FABRICATION OF SHARP NICKEL TIPS IN H2SO4 SOLUTIONS

Citation
Ms. Nikolova et al., ELECTROCHEMICAL FABRICATION OF SHARP NICKEL TIPS IN H2SO4 SOLUTIONS, Journal of the Electrochemical Society, 144(2), 1997, pp. 455-460
Citations number
36
Categorie Soggetti
Electrochemistry
ISSN journal
00134651
Volume
144
Issue
2
Year of publication
1997
Pages
455 - 460
Database
ISI
SICI code
0013-4651(1997)144:2<455:EFOSNT>2.0.ZU;2-Z
Abstract
Electrochemical sharpening of metal wires can be achieved by rapid etc hing in the electropolishing regime. The electropolishing of nickel in H2SO4 glycerine/water solutions was found to be associated with the f ormation of a salt film at the surface. The shape of the tips was foun d to be dependent on the etching conditions: low aspect ratio tips wer e obtained in solutions with high resistivity, whereas high aspect rat io tips were produced in solutions with lower resistivity.