Thermometric characteristics of carbon fibres

Vainberg, V. V.; Vorobkalo, F. M.; Zarubin, L.I.; Ganyuk, L.N.; Dekhtyaruk, N.T.; Ignatkov, V.D.

doi:10.1016/0924-4247(93)80225-6

Cited by 4 publications

(2 citation statements)

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“…1,2) Recently, the drastic temperature change of electrical resistivity of carbon fiber has been also applied for security thermo sensor for static motion. 3) On the other hand, many works have been investigated for influences of tensile test under high stress on electrical resistivity of carbon fiber. 4,5) The tensile test under high stress has irreversibly increased the electrical resistivity, although remarkable decreasing in electrical resistivity by tiny tensile stress has not been found.…”

Section: Introductionmentioning

confidence: 99%

Bending Stress Dependent Electrical Resistivity of Carbon Fiber in Polymer for Health Monitoring System

Nishi

Hirano

2007

Mater. Trans.

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Influences of compressive and tensile stresses on an electrical resistivity of carbon fiber in polyvinyl acetate polymer on bending test are studied as a basic research to develop high sensitive stress sensors. It is confirmed that a compressive stress of less than 0.3 GPa on bending test reversibly decreases the electrical resistivity of carbon fiber due to enhancement of the density of state of bonding electron. A tensile stress of less than 0.3 GPa on bending test also decreases the electrical resistivity of carbon fiber, reversibly, because of decreasing the density of electron scattering sites.

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Section: Introductionmentioning

confidence: 99%

Bending Stress Dependent Electrical Resistivity of Carbon Fiber in Polymer for Health Monitoring System

Nishi

Hirano

2007

Mater. Trans.

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“…1,2) Furthermore, it has been also realized a high sensitive thermo sensor of static motion for security. 3) On the other hand, high strength joining has been obtained by using percussion welding, which has been applied to the junction of carbon fiber to pure metals. 4) Although the heating above 200 C tremendously decreased the fracture stress values in adhesive materials and soldering alloy, the fracture stress value above 1 GPa is observed for the carbon fiber junction to titanium bulk below 400 C. 5) As a basic research to develop strain sensors bedded in high strength composite materials, the influence of elastic stress on electrical resistivity of the carbon fiber at room temperature has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Influence of Elastic Tensile Stress on Electrical Resistivity of Carbon Fiber

Nishi

Hirano

2007

Mater. Trans.

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An influence of elastic tensile stress on electrical resistivity of carbon fiber has been investigated as a basic research to develop a strain sensor. The initial elastic stress reversibly decreases the electrical resistivity, although the large stress causing irreversible deformation increases the resistivity. In addition, a linear relationship between initial stress and reduced electrical resistivity is obtained in the initial elastic stress zone. As the initial elastic stress probably enhances the periodicity of graphite structure, decreasing in the electrical resistivity with tensile elastic stress is explained.

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