Mechanism and Sensitivity of Fe-C Coated Long Period Fiber Grating Sensors for Steel Corrosion Monitoring of RC Structures

Abstract

The mechanism and sensitivity of long period fiber gratings (LPFG) corrosion sensor, which is made by coating LPFG with an inner layer of silver and an outer layer of Fe-C, are investigated in this study. Two silver and three Fe-C thicknesses were considered. Results indicate that a linear relationship is present between the change in the resonant wavelength and the mass loss of the outer Fe-C layer within certain ranges. The corrosion sensitivity and service life of LPFG corrosion sensor depend on the thickness of both silver and Fe-C layers.

Department(s)

Materials Science and Engineering

Second Department

Civil, Architectural and Environmental Engineering

Research Center/Lab(s)

INSPIRE - University Transportation Center

Keywords and Phrases

EIS; Iron; Pitting Corrosion; Rust; SEM; Sputtered Films; Scanning Electron Microscopy; Silver; Steel Fibers; Corrosion Monitoring; Corrosion Sensor; Linear Relationships; Long Period Fiber Grating; RC Structure; Resonant Wavelengths; Diffraction Gratings

International Standard Serial Number (ISSN)

0010-938X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Elsevier Ltd, All rights reserved.

Publication Date

01 Oct 2017

Link to Full Text

Share

 
COinS