Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Manfred Hartelt"'
Publikováno v:
Wear. :372-378
The topography of wear scars on the surface of a steel disc coated with a diamond-like carbon (DLC) layer has been investigated with an Atomic Force Microscope (AFM). AFM topography images have been combined together taking advantage of the stitching
Publikováno v:
Polymer Composites. 38:48-60
Tribological properties of neat polyetherimide (PEI), glass, carbon fiber, and solid lubricants filled PEI composites are presented in this article. The aim of this study was to investigate the friction and wear properties of these composites under d
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 229:795-806
Tribological studies on neat polyetherketone (PEK) and glass fiber reinforced PEK composite were carried out at room and elevated temperature (120 ℃). The objective of this study was to characterize for friction and wear properties under dry recipr
Publikováno v:
Wear. 309:120-125
In this article we demonstrate the use of atomic force microscopy (AFM) measurements for the study of macroscopic wear scars. By stitching AFM images acquired over the wear scar, the detailed structure of the scar can be characterized even when the s
Autor:
Manfred Hartelt, Priit Kulu, Rolf Wäsche, Mart Viljus, Vitali Podgursky, Eron Adoberg, M. Simunin, Ilmo Sildos, Andrei Surženkov, E. Kimmari
Publikováno v:
Surface and Coatings Technology. 225:21-25
Main focus was on the deposition of carbon nanofibers (CNFs) onto the hard nanocomposite (nc-Ti1 − xAlxN)/(a-Si3N4) (nACo®) coating surface and the investigation of the structure and tribological properties of CNFs. The alcohol chemical vapor depo
Publikováno v:
Tribology Letters. 48:209-216
The tribological behaviour of unfilled thermoplastic polyurethane (TPU) and a polymer sphere filled (TPUG) thermoplastic polyurethane have been studied under oscillating sliding condition against cast iron as a counterpart. In the case of unfilled TP
Publikováno v:
Wear. 273:60-69
The wear behaviour of thin steel wires has been analyzed under oscillating sliding conditions in crossed cylinders contact geometry. The focus of this analysis was the influence of the crossing angle between the wires on the wear. The wires used had
Publikováno v:
Wear. 268:1409-1416
Different fretting tests of thin steel wires under different conditions (loads, strokes, number of cycles and mean pressures) were performed. The wires used had 0.45 mm in diameter and the material was a cold-drawn eutectoid carbon steel (0.8% C) wit
Publikováno v:
Wear. 267:2208-2215
The high temperature tribological performance of tetrahedral amorphous carbon coatings has been analyzed at elevated temperatures up to 250 deg C in air against three different counterbody materials - steel 100Cr6, alpha-alumina and silicon nitride.
Publikováno v:
Wear. 266:167-174
High-power piezo-electric motors with power densities of 1.4 kW/kg display a potential for substituting hydraulic actuators. For this application, two novel tribometers of the same type have been designed using commercially available components for s