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    Rights statement: This is an author-created, un-copyedited version of an article accepted for publication/published in Smart Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0964-1726/25/10/105018

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Hybrid graphene/geopolymeric cement as a superionic conductor for structural health monitoring applications

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Hybrid graphene/geopolymeric cement as a superionic conductor for structural health monitoring applications. / Saafi, Mohamed Ben Salem; Piukovics, Gabor; Ye, Jianqiao.
In: Smart Materials and Structures, Vol. 25, No. 10, 105018, 20.09.2016.

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Saafi MBS, Piukovics G, Ye J. Hybrid graphene/geopolymeric cement as a superionic conductor for structural health monitoring applications. Smart Materials and Structures. 2016 Sept 20;25(10):105018. doi: 10.1088/0964-1726/25/10/105018

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Bibtex

@article{c2f0687cfa3e49f5bc766beaa6042984,
title = "Hybrid graphene/geopolymeric cement as a superionic conductor for structural health monitoring applications",
abstract = "In this paper, we demonstrate for the first time a novel hybrid superionic long gauge sensor for structural health monitoring applications. The sensor consists of two graphene electrodes and a superionic conductor film made entirely of fly ash geopolymeric material. The sensor employs ion hopping as a conduction mechanism for high precision temperature and tensile strain sensing in structures. The design, fabrication and characterization of the sensor arepresented. The temperature and strain sensing mechanisms of the sensor are also discussed.The experimental results revealed that the crystal structure of the superionic film is a 3D sodium-poly(sialate-siloxo) (Na-PSS) framework, with a room temperature ionic conductivity between 1.54 x 10-2 and 1.72 x 10-2 S/m and, activation energy of 0.156 eV, which supports the notion that ion hopping is the main conduction mechanism for the sensor.The sensor showed high sensitivity to both temperature and tensile strain. The sensor exhibited temperature sensitivity as high as 21.5 kΩ/oC and tensile strain sensitivity (i.e.,gauge factor) as high as 358. The proposed sensor is relatively inexpensive and can easily be manufactured with long gauges to measure temperature and bulk strains in structures. With some further development and characterization, the sensor can be retrofitted onto existing structures such as bridges, buildings, pipelines and wind turbines to monitor their structuralintegrity.",
keywords = "super ionic, graphene, geopolymer, cement, sensor, structural health monitoring",
author = "Saafi, {Mohamed Ben Salem} and Gabor Piukovics and Jianqiao Ye",
note = "This is an author-created, un-copyedited version of an article accepted for publication/published in Smart Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0964-1726/25/10/105018",
year = "2016",
month = sep,
day = "20",
doi = "10.1088/0964-1726/25/10/105018",
language = "English",
volume = "25",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "10",

}

RIS

TY - JOUR

T1 - Hybrid graphene/geopolymeric cement as a superionic conductor for structural health monitoring applications

AU - Saafi, Mohamed Ben Salem

AU - Piukovics, Gabor

AU - Ye, Jianqiao

N1 - This is an author-created, un-copyedited version of an article accepted for publication/published in Smart Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi: 10.1088/0964-1726/25/10/105018

PY - 2016/9/20

Y1 - 2016/9/20

N2 - In this paper, we demonstrate for the first time a novel hybrid superionic long gauge sensor for structural health monitoring applications. The sensor consists of two graphene electrodes and a superionic conductor film made entirely of fly ash geopolymeric material. The sensor employs ion hopping as a conduction mechanism for high precision temperature and tensile strain sensing in structures. The design, fabrication and characterization of the sensor arepresented. The temperature and strain sensing mechanisms of the sensor are also discussed.The experimental results revealed that the crystal structure of the superionic film is a 3D sodium-poly(sialate-siloxo) (Na-PSS) framework, with a room temperature ionic conductivity between 1.54 x 10-2 and 1.72 x 10-2 S/m and, activation energy of 0.156 eV, which supports the notion that ion hopping is the main conduction mechanism for the sensor.The sensor showed high sensitivity to both temperature and tensile strain. The sensor exhibited temperature sensitivity as high as 21.5 kΩ/oC and tensile strain sensitivity (i.e.,gauge factor) as high as 358. The proposed sensor is relatively inexpensive and can easily be manufactured with long gauges to measure temperature and bulk strains in structures. With some further development and characterization, the sensor can be retrofitted onto existing structures such as bridges, buildings, pipelines and wind turbines to monitor their structuralintegrity.

AB - In this paper, we demonstrate for the first time a novel hybrid superionic long gauge sensor for structural health monitoring applications. The sensor consists of two graphene electrodes and a superionic conductor film made entirely of fly ash geopolymeric material. The sensor employs ion hopping as a conduction mechanism for high precision temperature and tensile strain sensing in structures. The design, fabrication and characterization of the sensor arepresented. The temperature and strain sensing mechanisms of the sensor are also discussed.The experimental results revealed that the crystal structure of the superionic film is a 3D sodium-poly(sialate-siloxo) (Na-PSS) framework, with a room temperature ionic conductivity between 1.54 x 10-2 and 1.72 x 10-2 S/m and, activation energy of 0.156 eV, which supports the notion that ion hopping is the main conduction mechanism for the sensor.The sensor showed high sensitivity to both temperature and tensile strain. The sensor exhibited temperature sensitivity as high as 21.5 kΩ/oC and tensile strain sensitivity (i.e.,gauge factor) as high as 358. The proposed sensor is relatively inexpensive and can easily be manufactured with long gauges to measure temperature and bulk strains in structures. With some further development and characterization, the sensor can be retrofitted onto existing structures such as bridges, buildings, pipelines and wind turbines to monitor their structuralintegrity.

KW - super ionic

KW - graphene

KW - geopolymer

KW - cement

KW - sensor

KW - structural health monitoring

U2 - 10.1088/0964-1726/25/10/105018

DO - 10.1088/0964-1726/25/10/105018

M3 - Journal article

VL - 25

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 10

M1 - 105018

ER -