Abstract
Piezoresistivity was observed in continuous unidirectional carbonfiber cement-matrix and polymer-matrix composites. The fiber volumefraction was 2.6–7.4% and 58% for cement-matrix andpolymer-matrix composites respectively. The DC electrical resistancein the fiber direction increased upon tension in the fiber directionfor the cement-matrix composite, due to fiber-matrix interfacedegradation, but decreased upon tension for the polymer-matrixcomposite due to increase in the degree of fiber alignment.
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Wen, S., Wang, S. & Chung, D.D.L. Piezoresistivity in continuous carbon fiber polymer-matrix and cement-matrix composites. Journal of Materials Science 35, 3669–3675 (2000). https://doi.org/10.1023/A:1004842303468
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DOI: https://doi.org/10.1023/A:1004842303468