The tribology of graphite and cement mortar was studied by contact electrical resistance measurement during cyclic compression. Elastic deformation and plastic deformation at asperities were distinctly observed through the reversible and irreversible decreases, respectively, of the contact resistance upon loading. Elastic deformation was dominant at the maximum stress. Plastic deformation progressed and then saturated upon stress cycling.
Issue Section:Technical Papers
Keywords:elastic deformation, plastic deformation, graphite, concrete, electrical resistivity, tribology, mechanical contact, contact resistance
C. C., and
Tribological Effects of Roughness and Running-In on Oil-Lubricated Line Contacts,”
Prod. Eng. (N.Y.),
Ackerman, C., Lentz, H., Powers, W., Jr., Jones, T., Casuccio, A., Spangler, C., Fischione, P., File, D., Anderson, G., Breindel, H., and Reed, B., 1990, “Automated Torque and Resistance Measurements of Sliding Electrical Contacts During Life Testing,” Proc. 36th Annual IEEE Holm Conference on Electrical Contacts, Illinois Inst. of Technology, Chicago, IL, pp. 259–268.
S. J. N., and
Contact Resistance and Wear Behavior of Separable Electrical Contact Materials,”
V. E., and
Investigation of Wear Relations by the Method of Contact Electrical Resistance,”
Sov. Eng. Res.,
L. B., and
Teaming Measurements of the Coefficient of Friction and of Contact Resistance as a Tool for the Investigation of Sliding Interfaces,”
A. K., and
Run-In Study Based on Electrical and Acoustic Characteristics,”
Sov. J. Friction Wear (Engl. Transl. Trenie i Iznos),
Significance of Contact Resistance in Boundary Lubrication,”
V. V., and
Experimental Study of Metallic Contact Spots Formation,”
J. Friction Wear,
Shobert, E. I., 1965, Carbon Brushes: The Physics and Chemistry of Sliding Contacts, Chemical, New York, NY, pp. 185–186.
Tribological Behavior of Graphite/Graphite and Graphite/Copper Couples in Sliding Electrical Contact: Influence of the Contact Electric Field on the Surface Passivation,”
Appl. Surf. Sci.,
Duthie, F. W., 1985, “Long Life Brushes—100 Years,” 1985 Coil Winding Proceedings, Int. Coil Winding Association, Minneapolis, MN, pp. 65–76.
Rabinowicz, E., and Ross, A. Z., 1984, “Compatibility Effects in the Sliding of Graphite and Silver-Graphite Brushes Against Various Ring Materials,” Electrical Contacts—1984, Proceedings of the Twelfth International Conference on Electric Contact Phenomena, Meeting Jointly with the Thirtieth Annual Holm Conference on Electrical Contacts, Illinois Inst. of Technology, Chicago, IL, pp. 499–506.
Frictional Interaction and Current Passage in Composite-Metal Sliding Electrical Contact—II,”
Sov. J. Friction Wear (Engl. Transl. of Trenie i Iznos),
Influence of the Pulsating Current Amplitude on the Dynamic Friction Coefficient of Electrographite Brushes,”
M. D., and
Frictional and Electrical Interactions in Current Collectors,”
Wu, Y., Zhang, G., and Tang, W., 1995, “Research of Fiber/Graphite Composite Brush: Electrical Contacts,” Proceedings of the 41st IEEE Holm Conference on Electrical Contacts, IEEE, Piscataway, NJ, pp. 315–322.
Simulation of a Carbon Graphite Brush with Distributed Metal Particles,”
IEEE Trans. Compon., Packag. Manuf. Technol., Part A,
Two Regimes of Current Conduction in Metal-Graphite Electrical Brushes and Resulting Instabilities,”
IEEE Trans. Compon., Hybrids, Manuf. Technol.,
D. D. L.,
Carbon Fiber Reinforced Concrete as a Smart Material Capable of Non-Destructive Flaw Detection,”
Smart Mater. Struct.,
Copyright © 2001