Silver based composite coatings with improved sliding wear behaviour

“…Therefore, the effects of these bonds as well as of tribological interactions of the component surfaces must be limited. They are managed through application of composite materials reinforced with ceramic particles or short fibres, such as: Ag-SnO 2 , Ag-Al 2 O 3 [1,3,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…Impact of the particle reinforcement on the tribological properties of metal matrix composites has been known based on, among others, a number of the authors' individual studies [2,[11][12]. Presence of reinforcing particles in the metal matrix, in addition to increased hardness of the interacting surfaces, primarily results in improved resistance of the interacting components to abrasive wear.…”

Section: Introductionmentioning

confidence: 99%

Silver Matrix Composites - Structure and Properties

Wieczorek

Oleksiak

Łabaj

et al. 2016

Archives of Metallurgy and Materials

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Phase compositions of composite materials determine their performance as well as physical and mechanical properties. Depending on the type of applied matrix and the kind, amount and morphology of the matrix reinforcement, it is possible to shape the material properties so that they meet specific operational requirements. In the paper, results of investigations on silver alloy matrix composites reinforced with ceramic particles are presented. The investigations enabled evaluation of hardness, tribological and mechanical properties as well as the structure of produced materials. The matrix of composite material was an alloy of silver and aluminium, magnesium and silicon. As the reinforcing phase, 20-60 μm ceramic particles (SiC, SiO2, Al2O3 and Cs) were applied. The volume fraction of the reinforcing phase in the composites was 10%. The composites were produced using the liquid phase (casting) technology, followed by plastic work (the KOBO method). The mechanical and tribological properties were analysed for plastic work-subjected composites. The mechanical properties were assessed based on a static tensile and hardness tests. The tribological properties were investigated under dry sliding conditions. The analysis of results led to determination of effects of the composite production technology on their performance. Moreover, a relationship between the type of reinforcing phase and the mechanical and tribological properties was established.

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“…Silver is a metal that can be electroplated to provide desirable properties, such as being a good conductor of electricity, chemically stable in being able to resist corrosion, and even being able to provide tribological (tribology can be defined as a branch of mechanical engineering and materials science involving the study and application of principles involving friction, lubrication and wear between moving surfaces) improvements [5][6][7][8][9]. From a cost perspective, the price of silver is approximately 65 times cheaper than gold per ounce.…”

Section: Introductionmentioning

confidence: 99%

Non-Cyanide Electrodeposited Ag–PTFE Composite Coating Using Direct or Pulsed Current Deposition

Sieh

2016

Coatings

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Abstract:The effects of FC-4 cationic surfactant on electrodeposited Ag-PTFE composite coating using direct or pulsed currents were studied using scanning electron microscope (SEM), energy dispersive X-ray (EDS), optical microscope, and a linear tribometer. FC-4:PTFE in various ratios were added to a non-cyanide succinimide silver complex bath. Direct or pulsed current method was used at a constant current density to enable comparison between both methods. A high incorporation rate of PTFE was successfully achieved, with pulsed current being highly useful in increasing the amount of PTFE in the composite coating. The study of coating wear under sliding showed that a large majority of the electrodeposited coatings still managed to adhere to the substrate, even after 10 wear cycles of sliding tests. Performance improvements were achieved on all the samples with a coefficient of friction (CoF) between 0.06 and 0.12.

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Silver based composite coatings with improved sliding wear behaviour

Cited by 15 publications

References 14 publications

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Cu/Ni/Au multilayers by electrochemistry: A crucial system in electronics - A critical review

Silver Matrix Composites - Structure and Properties

Non-Cyanide Electrodeposited Ag–PTFE Composite Coating Using Direct or Pulsed Current Deposition

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