Mechanical and tribological properties of hard aluminium-carbon multilayer films prepared by the Laser-Arc technique
Date
1998Author
Ziegele, H.Rebholz, Claus
Scheibe, H. J.
Schultrich, B.
Matthews, A.
Source
Surface and Coatings TechnologyVolume
107Pages
159-167Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
The method of laser-induced vacuum arc (Laser-Arc) combines the good controllability of pulsed laser deposition with the high efficiency of a vacuum arc technique. One advantage of this technique is the reduction of droplets, allowing the deposition of high-quality amorphous carbon films. These hydrogen-free films, with a very hardness, exhibit excellent wear resistance and low friction. Multilayer films consisting of aluminium and carbon were deposited on a metallic substrate (90MnV8). A Rockwell C tester was used to assess and the adhesion of the coatings to the substrate. Young moduli of around 420 GPa were measured by the non-destructive ultrasonic surface wave method (US-SAW). The coefficient of friction was investigated by using two different fretting wear tests with the same load but different frequencies and stroke lengths, and values between 0.1 and 0.25 were recorded against steel. The coatings showed an increase in adhesion and a decrease in the tribological properties with increasing aluminium content. The method of laser-induced vacuum arc (Laser-Arc) combines the good controllability of pulsed laser deposition with the high efficiency of a vacuum arc technique. One advantage of this technique is the reduction of droplets, allowing the deposition of high-quality amorphous carbon films. These hydrogen-free films, with a very high hardness, exhibit excellent wear resistance and low friction. Multilayer films consisting of aluminium and carbon were deposited on a metallic substrate (90MnV8). A Rockwell C tester was used to assess and the adhesion of the coatings to the substrate. Young moduli of around 420 GPa were measured by the non-destructive ultrasonic surface wave method (US-SAW). The coefficient of friction was investigated by using two different fretting wear tests with the same load but different frequencies and stroke lengths, and values between 0.1 and 0.25 were recorded against steel. The coatings showed an increase in adhesion and a decrease in the tribological properties with increasing aluminium content.
Collections
Cite as
Related items
Showing items related by title, author, creator and subject.
-
Article
Nanoporous activated carbon cloth as a versatile material for hydrogen adsorption, selective gas separation and electrochemical energy storage
Kostoglou, N.; Koczwara, C.; Prehal, C.; Terziyska, V.; Babic, B.; Matovic, B.; Constantinides, G.; Tampaxis, C.; Charalambopoulou, Georgia; Steriotis, T.; Hinder, S.; Baker, M. A.; Polychronopoulou, K.; Doumanidis, C. C.; Paris, O.; Mitterer, C.; Rebholz, Claus (2017)The efficient storage of energy combined with a minimum carbon footprint is still considered one of the major challenges towards the transition to a progressive, sustainable and environmental friendly society on a global ...
-
Article
Ultrafast pulsed laser deposition of carbon nanostructures: Structural and optical characterization
Pervolaraki, Maria; Komninou, P.; Kioseoglou, J.; Othonos, Andreas S.; Giapintzakis, Ioannis (2013)Carbon nanostructured materials were obtained by high-repetition rate pulsed laser ablation of a graphite target using a train of 10-ps duration pulses at 1064 nm in different pressures of high-purity Ar gas. It is ...
-
Article
Microstructure and nanomechanical properties of pulsed excimer laser deposited DLC:Ag films: Enhanced nanotribological response
Constantinou, M.; Pervolaraki, M.; Nikolaou, P.; Prouskas, C.; Patsalas, P.; Kelires, P.; Giapintzakis, John; Constantinides, G. (2017)Diamond-like carbon:silver (DLC:Ag) thin films, with metal contents as high as 16.8 at.%, have been deposited on silicon substrates using pulsed excimer laser deposition