Tribological properties of DLC film prepared by C+ ion beam-assisted deposition (IBAD)

2006 ◽  
Vol 21 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Bai Xiuqin ◽  
Peter Böhm ◽  
Li Jian ◽  
Yan Xinping
Vacuum ◽  
2003 ◽  
Vol 70 (2-3) ◽  
pp. 411-416 ◽  
Author(s):  
P. Budzynski ◽  
P. Tarkowski ◽  
P. Żukowski ◽  
K. Kiszczak ◽  
W. Kasietczuk

1991 ◽  
Vol 239 ◽  
Author(s):  
J. H. Hsieh ◽  
O. O. Ajayi ◽  
A. Erdemir ◽  
F. A. Nichols

ABSTRACTAg and Ag/Ti films were deposited on ZrO2 substrates by ion-beam-assisted deposition. Adhesion of these films was measured before and after heat treatment at 250°C in air. The results show that a graded interface between Ag and Ti was necessary for the Ag films to survive the heat treatment. Reciprocating pin-on-disc tests were performed at 150°C after heat treatment to investigate the relationship between adhesion and tribological properties. The failure of Ag and Ag/Ti (without graded interface) films was also observed during wear tests. However, this Ag film failure did not result in negative effects. All three Ag-coated substrates show better tribological behavior.


1996 ◽  
Vol 438 ◽  
Author(s):  
E. J. Tobin ◽  
F. Namavar ◽  
H. F. Karimy ◽  
C. Colerico-Stenstrom ◽  
R. J. Bricault ◽  
...  

AbstractMechanical and tribological properties of chromium-nitrogen films deposited by ion beam assisted deposition (IBAD) were investigated. The films were deposited reactively, i.e., via chromium evaporation with concurrent nitrogen ion beam bombardment, on stainless steel substrates at low deposition temperatures (<200°C). Two primary deposition regimes, with differing Cr/N atom-to-ion arrival ratios, were investigated: approximately 0.8–1.0 and 2.5–3.0. Rutherford Backscattering Spectroscopic analysis showed the lower arrival ratio films to be essentially stoichiometric CrN, whereas films deposited at higher arrival ratios were Cr-rich with Cr/N ratios of about 3:1. Both films were fine grained polycrystalline (typically 5–20 nanometer crystal dimension). The stoichiometric films were approximately two times harder than the Cr-rich films., based on nanohardness indentation measurements, and possessed higher residual stress levels. Both film types substantially improved the wear resistance of stainless steel disks, based on the results of ball-ondisk wear tests against ruby balls. The best performance was obtained with Cr-rich films, which exhibited a very low wear rate and lower friction than either the stoichiometric film or the uncoated steel.


Sign in / Sign up

Export Citation Format

Share Document