ELECTROCHEMICAL FABRICATION OF SHARP NICKEL TIPS IN H2SO4 SOLUTIONS

Authors
NIKOLOVA MS NATARAJAN A SEARSON PC CHAKAROVA GS MACAULAY JM
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
Journal title
Journal of the Electrochemical Society → ACNP
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.