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On the application of the PECLI technique (Photoelectrochemical Laser Imaging) to corrosion studies
Author(s) -
Shukla Deepak,
Stimming Ulrich
Publication year - 1989
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19890400107
Subject(s) - corrosion , materials science , photoelectrochemistry , laser , absorption (acoustics) , characterization (materials science) , optics , diffuse reflection , metallurgy , optoelectronics , electrochemistry , composite material , electrode , nanotechnology , chemistry , physics
The application of photoelectrochemistry for the micro‐characterization and the study of passive films under corroding and non‐corroding conditions is described. The various factors which influence the signal recorded in the PhotoElectroChemical Laser Imaging (PECLI) technique are discussed. In particular, the influence of parameters such as absorption coefficient, reflectivity, composition, structural properties and thickness of the passive film are considered. The application of the technique is demonstrated with examples of images of corroded surfaces, corroding surfaces and of a non‐corroding alloy.