Carbon fiber structural composites as thermistors

Sihai Wen; Shoukai Wang; D. D.L. Chung

doi:10.1016/S0924-4247(99)00240-X

Carbon fiber structural composites as thermistors

Sihai Wen
, Shoukai Wang
, D. D.L. Chung

Department of Mechanical and Aerospace Engineering

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

Carbon fiber structural composites, in the form of short-fiber silica fume cement-matrix composite and crossply continuous-fiber polymer-matrix composite, were found to be thermistors due to the decrease in electrical resistivity with increasing temperature. The resistivity is the volume resistivity for the cement-matrix composite and the contact resistivity between crossply laminae for the polymer-matrix composite. The activation energy of electrical conduction is up to 0.41 and 0.12 eV for cement-matrix and polymer-matrix composites, respectively. For the polymer-matrix composite, each junction between crossply fiber groups of adjacent laminae is a thermistor, while the fiber groups serve as electrical leads.

Original language	English
Pages (from-to)	180-188
Number of pages	9
Journal	Sensors and Actuators A: Physical
Volume	78
Issue number	2
DOIs	https://doi.org/10.1016/S0924-4247(99)00240-X
State	Published - Dec 14 1999

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title = "Carbon fiber structural composites as thermistors",

abstract = "Carbon fiber structural composites, in the form of short-fiber silica fume cement-matrix composite and crossply continuous-fiber polymer-matrix composite, were found to be thermistors due to the decrease in electrical resistivity with increasing temperature. The resistivity is the volume resistivity for the cement-matrix composite and the contact resistivity between crossply laminae for the polymer-matrix composite. The activation energy of electrical conduction is up to 0.41 and 0.12 eV for cement-matrix and polymer-matrix composites, respectively. For the polymer-matrix composite, each junction between crossply fiber groups of adjacent laminae is a thermistor, while the fiber groups serve as electrical leads.",

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T1 - Carbon fiber structural composites as thermistors

AU - Wen, Sihai

AU - Wang, Shoukai

AU - Chung, D. D.L.

PY - 1999/12/14

Y1 - 1999/12/14

N2 - Carbon fiber structural composites, in the form of short-fiber silica fume cement-matrix composite and crossply continuous-fiber polymer-matrix composite, were found to be thermistors due to the decrease in electrical resistivity with increasing temperature. The resistivity is the volume resistivity for the cement-matrix composite and the contact resistivity between crossply laminae for the polymer-matrix composite. The activation energy of electrical conduction is up to 0.41 and 0.12 eV for cement-matrix and polymer-matrix composites, respectively. For the polymer-matrix composite, each junction between crossply fiber groups of adjacent laminae is a thermistor, while the fiber groups serve as electrical leads.

AB - Carbon fiber structural composites, in the form of short-fiber silica fume cement-matrix composite and crossply continuous-fiber polymer-matrix composite, were found to be thermistors due to the decrease in electrical resistivity with increasing temperature. The resistivity is the volume resistivity for the cement-matrix composite and the contact resistivity between crossply laminae for the polymer-matrix composite. The activation energy of electrical conduction is up to 0.41 and 0.12 eV for cement-matrix and polymer-matrix composites, respectively. For the polymer-matrix composite, each junction between crossply fiber groups of adjacent laminae is a thermistor, while the fiber groups serve as electrical leads.

UR - https://www.scopus.com/pages/publications/0033361502

U2 - 10.1016/S0924-4247(99)00240-X

DO - 10.1016/S0924-4247(99)00240-X

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JO - Sensors and Actuators A: Physical

JF - Sensors and Actuators A: Physical

IS - 2

ER -

Carbon fiber structural composites as thermistors

Abstract

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