Electrical Resistance Behavior during Tensile Loading of Al2 O3 Fiber-Nano RuO2-Glass Composites
The conductive composites in which nano RuO2 particles are dispersed throughout a glass matrix have been successfully fabricated by sintering at 850°C. The sensing properties of conductive composites were investigated in real time during tensile testing by measuring the electrical resistance. It is shown that the excellent sensing ability based on electrical resistance changes in the low strain range was due to deformation of conduction paths between nano RuO2 particles by brittle fracture of the glass matrix. The change of electrical resistance depends strongly on the volume percent of Al2O3 fiber reinforcement.
T. Ohji, T. Sekino and K. Niihara
B. K. Jang and H. Matsubara, "Electrical Resistance Behavior during Tensile Loading of Al2 O3 Fiber-Nano RuO2-Glass Composites", Key Engineering Materials, Vols. 317-318, pp. 309-312, 2006