[Zurück]

A. Schneider, D. Steinmüller-Nethl, M. Roy, F. Franek:
"Enhanced tribological performances of nanocrystalline diamond film";
International Journal of Refractory Metals & Hard Materials, 28 (2010), 1; S. 40 - 50.

Diamond films are weil known for their outstanding properries such as high hardness, possible low coefficient of friction. high thermal conductivity, excellent biocompatibility and electrical insulation. Diamond films with nanocrystalline grains (grain sizes between 3 and 15 nm) offer further advantages of low compressive stress, low surface roughness, and high amount of surface atoms in relation to volume leading to enhanced surface properties. In view of these, the present investigation is undertaken to explore the possibility of using nanocrystalline diamond (NeO) films in advanced automotive equipment. Accordingly NCO-films have been deposited using a modified hot-filament technique. Tribological behaviour of these films has been evaluated by means of a reciprocating model tribometer with different lubricant qualities. The worn surfaces were examined using scanning electron microscopy (SEM) and 3D white light confocal microscopy. The results show the influences of coating qualities and test conditions on the tribological response. Comparable friction coefficient can be found with high treated and low treated
lubricants. These films exhibited negligible wear for the range of load tested.

Nanocrystalline diamond Tribological behaviour Lubricant quality

http://dx.doi.org/10.1016/j.ijrmhm.2009.07.010

Projektleitung Friedrich Franek:
Tribologie