Lubrication properties of inorganic-organic hybrids

The development of fundamental processing technologies for low friction mat erials under boundary and fluid lubrication conditions, as well as technolo gies for incorporating flexibility into these materials for application to internal combustion engine components. The objectives of this study are as follows: (1) is to develop a piston ring with new inorganic-organic hybrid materials; (2) to reduce the friction to less than 80% of that in a cast ir on piston ring, In this paper, the evaluation of friction and fundamental p roperties with test pieces was carried out. By changing the composition of inorganic-organic hybrid materials and control of heat treatment conditions , it is possible to eliminate cracking and to make the external surface fla t and smooth. The possibility is confirmed of improving the friction proper ty by controlling the wettability of inorganic-organic hybrids by oil addit ion.