Seebeck Effect in Graphite-Carbon Fiber Cement Based Composite

Hai Yong Cao; Wu Yao; Jun Jie Qin

doi:10.4028/www.scientific.net/AMR.177.566

Paper Titles

Influence of Protective Layer Thickness on the Mechanical Properties of Reinforced Concrete Beam
p.549

On the Experimental Methods for the Determination of Elastic Modulus and Hardness of Cement Particles by Nanoindentation
p.554

Absorbing and Mechanical Properties of Cement-Based Composites with Nano-Titanic Oxide Absorbent
p.558

Bond Behaviour of Concrete Block Including Steel Mesh of Various Rib Pattern and Bar Size
p.562

Seebeck Effect in Graphite-Carbon Fiber Cement Based Composite
p.566

Electromagnetic Shielding Effectiveness of Cement-Matrix Composite Containing Nickel Fiber
p.570

Testing Methods of Adiabatic Temperature Rise in Concrete
p.574

Electrochemical Charaterization of Steel Concrete under Multi-Factors Influence
p.578

Detecting the Efficiency of Cathodic Protection in Reinforced Concrete by Use of Galvanostatic Pulse Technique
p.584

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 177Seebeck Effect in Graphite-Carbon Fiber Cement...

Seebeck Effect in Graphite-Carbon Fiber Cement Based Composite

Abstract:

The Seebeck effect in carbon fiber reinforced cement-based composite (CFRC) is of interest because it enables the cement-based materials to sense its own temperature without attached or embedded sensor. In this study, the Seebeck coefficient of CFRC and graphite-carbon fiber cement based composite were measured. Results show that the addition of graphite can enhance the Seebeck effect of CFRC. When graphite content is 10wt. %, all types of CFRC show P-type because the hole contribution from carbon fiber dominates the Seebeck effect. When the graphite content is 20wt. %, the change of thermoelectric power (TEP) from positive to negative occurs with the increasing of graphite to carbon fiber ratio (≥25). This phenomenon indicates that compensation takes place between electron contribution from graphite and hole contribution from carbon fiber. At a high graphite content (30wt. %), CFRC shows N-type above a certain temperature difference (20-25°C) since the electrons from graphite dominate the Seebeck effect.