Corrosion induced mass loss measurement under various strain levels through Gr/AgNW-based, Fe-C coated lpfg sensors

Chuanrui Guo, Liang Fan, Genda Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In this study, three Gr/AgNW-based, Fe-C coated long period fiber gratings (LPFG) corrosion sensors were prepared and tested for corrosion-induced mass loss measurements under various strain levels. Graphene grew on a copper foil using a low pressure chemical vapor deposition, was transferred to the curve surface of each LPFG sensor, and strengthened by silver nanowire (AgNW) for a more robust electroplating process of the Fe-C layer. The three Fe-C coated LPFG sensors were subjected to three different strain levels: 0, 500 and 1000 μϵ. The sensors were immersed up to 72 hours in 3.5% w.t NaCl solution. Both optical transmission spectra and electrical impedance spectroscopy (EIS) data were simultaneously collected from each Fe-C coated sensor. Compared with the zero-strained sensor, the strained sensors increased their sensitivity by approximately 133% and 182% in Stage I, but reduced to 49% and 24% in Stage II at strain levels of 500 μϵ and 100 μϵ, respectively.

Original languageEnglish
Title of host publication9th International Conference on Structural Health Monitoring of Intelligent Infrastructure
Subtitle of host publicationTransferring Research into Practice, SHMII 2019 - Conference Proceedings
EditorsGenda Chen, Sreenivas Alampalli
PublisherInternational Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII
Pages1138-1143
Number of pages6
ISBN (Electronic)9780000000002
Publication statusPublished - 2019
Externally publishedYes
Event9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019 - St. Louis, United States
Duration: 4 Aug 20197 Aug 2019

Publication series

Name9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019 - Conference Proceedings
Volume2

Conference

Conference9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019
CountryUnited States
CitySt. Louis
Period4/08/197/08/19

ASJC Scopus subject areas

  • Artificial Intelligence
  • Civil and Structural Engineering
  • Building and Construction

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