Article ID Journal Published Year Pages File Type
1470564 Corrosion Science 2010 5 Pages PDF
Abstract

The semiconductor properties of passive films formed on AISI 316L in three acidic solutions were studied by employing Mott–Schottky analysis in conjunction with the point defect model (PDM). Based on PDM, the key parameters for passive film growth are the diffusivity and density of the defects within the film. The results indicated that donor densities are in the range 1–4 × 1021 cm−3 and increased with solution concentration. By assuming that the donors are oxygen ion vacancies and/or cation interstitials, the diffusion coefficient of the donors in three acidic solutions are calculated to be approximately 1–5 × 10−16 cm2/s.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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