Effect of copper on the tribological properties of Al-Si base alloys

1995 ◽  
Vol 14 (23) ◽  
pp. 1661-1663 ◽  
Author(s):  
R. Dasgupta ◽  
S. K. Bose
Keyword(s):  
Tribological Properties ◽  
Effect Of Copper

ANALYSIS OF THE TRIBOLOGICAL PROPERTIES OF Cu-aTiO2 COMPOSITE COATINGS APPLIED BY THE COLD SPRAY METHOD

Tribologia ◽  
2020 ◽  
Vol 292 (4) ◽  
pp. 51-57
Author(s):  
Małgorzata Rutkowska-Gorczyca ◽  
Anita Ptak ◽  
Marcin Winnicki
Keyword(s):  
Friction Coefficient ◽  
Abrasive Wear ◽  
Tribological Properties ◽  
Composite Coatings ◽  
Submicron Particles ◽  
Copper Coatings ◽  
316L Steel ◽  
Long Time ◽  
Effect Of Copper ◽  
The Impact

The properties of copper have been known and used for a very long time, and research has also been carried out for a long time to expand the applications of this material. One of the methods increasing the bactericidal and bacteriostatic effect of copper is modification by means of the TiO2 phase. The research was conducted in order to determine the impact of modification of copper coatings with TiO2 titanium dioxide on their tribological properties. The paper presents the results of studies on tribological wear of composite coatings applied on steel using the method of low-pressure cold gas spraying (LPCS). The tests of resistance to abrasive wear were carried out in a ball-disc combination in reciprocating motion. The analysis of the resistance to abrasive wear of the tested coatings included the determination of the impact of the pressure force on the intensity of wear and the kinetic friction coefficient of the tested friction pairs. It was found that the samples covered only with copper coatings were characterized by a higher value of friction coefficient in relation to the substrate made of AISI 316l steel. The modification of copper with the submicron particles TiO2 fraction does not increase the value of friction coefficient. The value of this parameter is maintained at a similar level regardless of the applied counterspecimen.

The Synthesis and Effect of Copper Nanoparticles on the Tribological Properties of Lubricant Oils

2013 ◽  
Vol 12 (5) ◽  
pp. 751-759 ◽  
Author(s):  
Valentina Zin ◽  
Filippo Agresti ◽  
Simona Barison ◽  
Laura Colla ◽  
Angela Gondolini ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Tribological Properties ◽  
Effect Of Copper

The Effect of Copper Ions on Clot Lysis Time in the Fibrinolytic Assay of Streptokinase

1965 ◽  
Vol 13 (02) ◽  
pp. 477-483
Author(s):  
Alwin B. Bogert
Keyword(s):  
Copper Ions ◽  
Borate Buffer ◽  
Fibrinolytic System ◽  
Clot Lysis ◽  
Distilled Water ◽  
Naturally Occurring ◽  
Lysis Time ◽  
Low Levels ◽  
Effect Of Copper ◽  
Clot Lysis Time

SummaryExperiments were conducted to determine why different lots of Borate Buffer reagent affect the clot lysis times obtained in the fibrinolytic assay of Streptokinase. Minerals naturally occurring in distilled water were screened individually to determine their influence on lysis. Copper was found to have a very pronounced effect in this regard on the fibrinolytic system in that low levels reduce the lysis time and high levels increase it.

Augment of Tribological Properties Using Shape-tunable Surfaces

2018 ◽  
Vol 91 (9) ◽  
pp. 358-361
Author(s):  
Takuya OHZONO ◽  
Kay TERAOKA
Keyword(s):  
Tribological Properties
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