Journal ArticleDOI
Tribological behaviour of materials at cryogenic temperatures
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TLDR
In this article, the authors presented results of low temperature investigations on the tribological behavior of polymers and composites as well as of TiN and carbon coating systems, and different cryotribometers were constructed for different cooling and loading conditions in the temperature range from 4.2 K up to room temperature.About:
This article is published in Wear.The article was published on 1998-04-01. It has received 75 citations till now. The article focuses on the topics: Advanced composite materials & Liquid hydrogen.read more
Citations
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Journal ArticleDOI
Effects of various fillers on the sliding wear of polymer composites
TL;DR: In this paper, the influence of particle size and filler contents on the wear performance of short-fibre reinforced polymer composites is discussed and some new steps towards the development of functionally graded tribo-materials are illustrated.
Journal ArticleDOI
Polymer composites for tribological applications
TL;DR: In this article, the importance of polymer tribology in general, the special design principles of polymer composites for low friction and wear under sliding against smooth metallic counterparts, and synergistic effects of nano-particles and traditional fillers and fibers for an optimal tribological performance are discussed.
Journal ArticleDOI
State-of-the-art cryogenic machining and processing
TL;DR: It is concluded that cryogenic cooling has demonstrated significant improvements in machinability by changing the material properties of the cutting tool and/or workpiece material at the cutting zone, altering the coefficient of friction and reducing the cutting temperature.
Journal ArticleDOI
Friction and wear of PTFE composites at cryogenic temperatures
TL;DR: In this article, the authors investigated the tribological behavior of PTFE composites against steel at cryogenic temperatures and found that the friction coefficient decreases with temperature down to 77 K, but did not follow a linear evolution further down to extreme low temperatures.
Journal ArticleDOI
Experimental evaluation of friction coefficient and liquid nitrogen lubrication effect in cryogenic machining
TL;DR: In this article, the authors measured the normal force and friction force directly in an altered machining setup to simulate the pure frictional behavior of the tool-chip interface in cryogenic cutting.
References
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Journal ArticleDOI
Identification of quench origins in a superconductor with acoustic emission and voltage measurements
TL;DR: In this paper, acoustic emission and voltage measurements were used to identify quench sources in a current-carrying superconductor, including conductor motion, epoxy cracking, and pure joule heating resulting from the conductor reaching critical current.
Journal ArticleDOI
Influence of the testing parameters on the tribological behaviour of self-mated PVD-coatings
TL;DR: In this paper, the authors investigated the wear properties of self-mated PVD-coated tribo-couples using different testing parameters, e.g., ambient medium, relative humidity, sliding distance or velocity.
Journal ArticleDOI
Friction and wear of polymeric materials at 293, 77 and 4.2 K
TL;DR: In this article, the friction and wear coefficients of various polymer pins sliding against either AISI 304 stainless steel or oxygen-free high conductivity (OFHC) copper at temperatures of 293, 77 and 4.2 K were determined.
Book ChapterDOI
Self-Lubricating Composites for Extreme Environmental Conditions
TL;DR: In this paper, the friction and wear mechanisms of a variety of self-lubricating composites are examined as functions of composition, temperature, atmosphere, and counterface type, and it is shown that a composite and its mating surface comprise an inseparable tribological system under any and all conditions.