Temperature Sensibility of Epoxy-Matrix Carbon Fiber Smart Layer

Hua Sheng Zheng; Jing Li; Si Rong Zhu; Zhuo Qiu Li

doi:10.4028/www.scientific.net/AMM.189.48

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 189Temperature Sensibility of Epoxy-Matrix Carbon...

Temperature Sensibility of Epoxy-Matrix Carbon Fiber Smart Layer

Abstract:

The paper deals with the temperature sensitivity of a new type strain sensor named carbon fiber smart layer (CFSL) made of epoxy-matrix composites with short carbon fiber mats. The experiment result indicated that the epoxy matrix CFSL is sensitive to temperature variation. It exhibits NTC effect in -5°C~25°C and exhibits PTC effect in 25°C~50°C. The NTC effect is relatively gentle and the PTC effect is relatively dramatic. The mechanism of both NTC effect and PTC effect is discussed based on the temperature sensitivities of carbon fiber itself and the fiber to fiber interface. Further experiment demonstrated its temperature sensing properties in the temperature scale in which the NTC effect or PTC effect exhibits individually.

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Periodical:

Applied Mechanics and Materials (Volume 189)

Pages:

48-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.189.48

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Online since:

July 2012

Authors:

Hua Sheng Zheng, Jing Li, Si Rong Zhu, Zhuo Qiu Li

Keywords:

Carbon Fiber Smart Layer, NTC Effect, PTC Effect

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