Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : April 18, 2016 - April 19, 2016
Si containing Diamond like carbon (Si-DLC) is known to have a low friction coefficient in hunmid air atmosphere. The mechanism for its low friction coefficient, μ=0.05 has been suggested by Mori et al to be the formation of hydroxyl group at the sliding interface[1]. They further reported that Si-DLC can show μ=0.03 by same mechanism[2]. Recently, Si-DLC coatings are expected to show ultra low friction (μ<0.01) in oil. One of the promising way to further reduce the friction coefficient was reported by Choi et al, where oxygen plasma treatment is employed for accelerating the formation of transfer layer from Si-DLC to mating surface; μ in ambient was reduced down to 0.03[3]. In this research, we investigated the influence of oxygen bonding in Oxygen containing Si-DLC (a-C:H:Si:O) on its friction property against SUJ2 ball under oil lubrication.
