The electrochemical fabrication of sharp nickel tips in H2SO4 solutions

M. S. Nikolova; A. Natarajan; P. C. Searson; G. S. Chakarova; J. M. Macaulay

doi:10.1149/1.1837431

The electrochemical fabrication of sharp nickel tips in H₂SO₄ solutions

M. S. Nikolova, A. Natarajan, P. C. Searson, G. S. Chakarova, J. M. Macaulay

Research output: Contribution to journal › Article › peer-review

Abstract

Electrochemical sharpening of metal wires can be achieved by rapid etching in the electropolishing regime. The electropolishing of nickel in H₂SO₄ glycerine/water solutions was found to be associated with the formation of a salt film at the surface. The shape of the tips was found to be dependent on the etching conditions: low aspect ratio tips were obtained in solutions with high resistivity, whereas high aspect ratio tips were produced in solutions with lower resistivity.

Original language	English (US)
Pages (from-to)	455-460
Number of pages	6
Journal	Journal of the Electrochemical Society
Volume	144
Issue number	2
DOIs	https://doi.org/10.1149/1.1837431
State	Published - Feb 1997
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Materials Chemistry
Surfaces, Coatings and Films
Electrochemistry
Renewable Energy, Sustainability and the Environment

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AU - Natarajan, A.

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AU - Macaulay, J. M.

PY - 1997/2

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AB - Electrochemical sharpening of metal wires can be achieved by rapid etching in the electropolishing regime. The electropolishing of nickel in H2SO4 glycerine/water solutions was found to be associated with the formation of a salt film at the surface. The shape of the tips was found to be dependent on the etching conditions: low aspect ratio tips were obtained in solutions with high resistivity, whereas high aspect ratio tips were produced in solutions with lower resistivity.

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The electrochemical fabrication of sharp nickel tips in H₂SO₄ solutions

Abstract

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