Abstract
Woodceramics are new porous carbon materials obtained from wood or woody materials impregnated with phenol resin, and carbonized in a vacuum furnace at high temperature. Woodceramics have several superior characteristics from the viewpoints of engineering materials and ecological materials: they are hard and strong, have porous structure and low density, are made from natural resources, do not cause environmental pollution, and are cheap to manufacture. This paper describes the fundamental friction properties of Woodceramics in sliding contact with several materials. Woodceramics made of medium density fiberboard (MDF) and beech impregnated with phenol resin and carbonized in a vacuum furnace at 800°C and 2000°C were rubbed against alumina, silicon nitride, bearing steel and diamond by using a reciprocating friction apparatus. Experiments were carried out unlubricated in air, impregnated with base oil and in water, at several normal loads and sliding velocities. The following principal results were obtained: (1) The friction coefficient is around 0.15, under all three lubrication conditions; (2) The friction coefficient slightly decreases and then stays constant with increasing normal load; (3) The friction coefficient is not affected by sliding velocity; (4) Woodceramics have a good self-lubricity.
Similar content being viewed by others
References
G. Savage, Carbon-Carbon Composites (Chapman & Hall, London, 1993), p. 323.
J.F. Byrne and H. Marsh in Porosity in Carbons, J.W. Patrick (ed.) (Edward Arnold, London, 1995), p. 2.
G.W. Stachowiak in Advances in Composite Tribology, Klaus Friedrich (ed.) (Elsevier Science Publishers, Amsterdam, 1993), p. 534.
B. Bhushan and B.K. Gupta, Handbook of Tribology, (McGraw-Hill Inc., New York, 1991) p. 5.1.
T. Okabe, K. Saito, and K. Hokkirigawa, Journal of Porous Materials 2, 207 (1996).
T. Okabe, K. Saito, and K. Hokkirigawa, Journal of Porous Materials 2, 215 (1996).
S. Sasaki, Tribologist 34, 103 (1989).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hokkirigawa, K., Okabe, T. & Saito, K. Friction properties of new porous carbon materials: Woodceramics. J Porous Mater 2, 237–243 (1996). https://doi.org/10.1007/BF00488114
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF00488114