Electropolishing of Metallic Surfaces and the Factors Influencing on the Limiting Current | Zendy

A-M M Ahmed | Zendy; Mervette Batouti | Zendy; S M S Khelil | Zendy

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Electropolishing of Metallic Surfaces and the Factors Influencing on the Limiting Current

Author(s) -

A-M M Ahmed,

Mervette Batouti,

S M S Khelil

Publication year - 2015

Publication title -

portugaliae electrochimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.252

H-Index - 27

eISSN - 1647-1571

pISSN - 0872-1904

DOI - 10.4152/pea.201502105

Subject(s) - electropolishing , limiting current , limiting , current (fluid) , materials science , metal , current limiting , metallurgy , chemistry , mechanical engineering , physics , engineering , thermodynamics , electrochemistry , electrode , electrolyte

Anodic limiting currents were measured in an unstirred divided cell at an inclined small scale anode using a large scale cathode with angles of inclination from vertical axis as 45, 60 and 75°. Anode heights (II) vary from 1 cm to 6 cm and phosphoric acid concentration from 6 to 10 moles. Limiting currents for electropolishing of copper were between 5 and 58 mA.cm -2 depending on the operating conditions. A general correlation of data of all inclinations was obtained using the equation: I = 28.57( 0.520 .C -0.89 .H -0.91 ) (1) with an average deviation of ±4%.

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