TY - GEN
T1 - Corrosion induced mass loss measurement under various strain levels through Gr/AgNW-based, Fe-C coated lpfg sensors
AU - Guo, Chuanrui
AU - Fan, Liang
AU - Chen, Genda
N1 - Publisher Copyright:
Copyright © SHMII 2019. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85091658932&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85091658932
T3 - 9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019 - Conference Proceedings
SP - 1138
EP - 1143
BT - 9th International Conference on Structural Health Monitoring of Intelligent Infrastructure
A2 - Chen, Genda
A2 - Alampalli, Sreenivas
PB - International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII
T2 - 9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019
Y2 - 4 August 2019 through 7 August 2019
ER -