Simulations of surface capacitance effects on potentiostat response following disruption of passivity

Conference · Tue Dec 31 00:00:00 EST 1991

OSTI ID:10119885

Isaacs, H S; Davenport, A J ^[1]; Frankel, G S ^[2]

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1. Brookhaven National Lab., Upton, NY (United States)
2. IBM Research Div., Yorktown Heights, NY (United States)

Following depassivation of potentiostatically controlled metals, complex current transients arise because of the current distribution and the capacitance of the surrounding passive metal/solution interface. A computer simulation of the cross-section has been developed. Examples following an instantaneous scratch are given for changes in the placement of the reference electrode and changes in the area of the passive surface.

• Research Organization: Brookhaven National Lab., Upton, NY (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 10119885
• Report Number(s): BNL-46205; CONF-911047-14; ON: DE92007282
• Resource Relation: Conference: 180. meeting of the Electrochemical Society,Phoenix, AZ (United States),13-18 Oct 1991; Other Information: PBD: [1991]
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
METALS
PASSIVATION
CORROSION
COMPUTERIZED SIMULATION
CURRENT DENSITY
CAPACITANCE
SURFACE PROPERTIES
DEFECTS
INTERFACES
SOLUTIONS
360105
CORROSION AND EROSION