tribological behaviour of self-lubricating materials at

Synthesis and tribological properties of graphene: A review

2017-6-12Tribological behaviour of graphene as self-lubricating coating as solid lubricant and as reinforcement ABSTRACT The target of this review is to explore the fundamental tribological behaviour of graphene the first existing two-dimensional (2-D) material and evaluate its performance as a self-lubricating material The importance

Preparation and Tribological Behavior of Self

The composites of Ni-W-Cr-Fe-Cu-MoS2-Graphite with nano-MoS2 were prepared by powder metallurgy Its tribological properties were investigated using the UTM-2 Nano+Micro Tribometer from room temperature to 600C The effects of amount of MoS2 and Ni-W-Cr prealloy powder load and temperature on the tribological properties were investigated and discussed

Effect of Temperature on Tribological Properties of Cu

In aerospace and power generation components will serve in high-temperature environments In this work the influence of temperature on the tribological performances of Cu/Ti 3 AlC 2 composites was investigated from 25 C to 700 C Cu/Ti 3 AlC 2 composites were fabricated by hot-pressing at 800 C The friction coefficients of the composites were in the range of 0 19–0 28

Tribological behaviour of a self

2018-8-8ABSTRACTIn this work we report on the first thermal spray coatings to consist of graphene oxide (GO) embedded in a WC–12Co matrix The purpose of these coatings is to release lubricant into the system when needed These coatings were prepared using detonation gun spraying and tribological tests of the coatings were performed The results indicated that a coating containing embedded GO

Synthesis and tribological properties of graphene: A review

2017-6-12Tribological behaviour of graphene as self-lubricating coating as solid lubricant and as reinforcement ABSTRACT The target of this review is to explore the fundamental tribological behaviour of graphene the first existing two-dimensional (2-D) material and evaluate its performance as a self-lubricating material The importance

Tribological Behavior of Adding Nano Oxides

2019-12-27The nanoparticles have unique properties in lubrication and tribology such as anti-wear reducing friction and high load capacity So add Nano Oxides Materials to Lithium Grease are capable of inducing the required reactions on the surfaces of bearings thus providing reliable damage protection even under several operating conditions A nanoparticle helps in improving the lives of the

Tribological Behaviour of Co

The tribological behaviour was studied under bi-directional ball-on-flat sliding tests: 10 N and 50 000 cycles The given research identified that Co-W coatings have superior wear resistance than those of uncoated samples (steel ST3) under dry and also under lubricating conditions


The coatings also comprise lubricating materials (silver and BaF2-CaF2 eutectic) and NiCr as the tough component This paper describes the vacuum tribological properties of TH103 a coating belonging to this family with excellent microstructural quality The coating was deposited by HVOF and tested under vacuum on a pin-on-disc tribometer

Tribological behaviour of self

2017 (English) In: International Materials Reviews ISSN 0950-6608 E-ISSN 1743-2804 Article in journal (Refereed) Epub ahead of print Abstract [en] Self-lubricating materials are becoming more widespread in fields like metal forming or power generation due to the inability to use conventional lubricants in high-temperature (HT) applications

Development of self lubricating Cutting tool material for

2015-7-29composite and investigated tribological behaviour to utilize as self lubricating bearing material Self-lubrication bearing materials with MoS2 nano-balls showed better tribological properties under selected testing conditions than those with micro-MoS2 platelets Du et

Mechanical and Tribological Behavior of Particulate

Aluminum Metal Matrix Composites (MMCs) sought over other conventional materials in the field of aerospace automotive and marine applications owing to their excellent improved properties These materials are of much interest to the researchers from few decades These composites initially replaced Cast Iron and Bronze alloys but owing to their poor wear and seizure resistance they were

Aspects of Self

Lubricating greases are markedly visco-elastic materials Stressed by a friction process this special material shows a drop of a measured shear stress or viscosity This typical behaviour is observed in a number of papers and therefore is well known Some different explanations can be found but most of them describe a structural degradation caused by the friction process

Tribological behavior of self

2018-6-24create self-lubricating materials which are insensitive about their at-mospheric surrounding and external influences have to be developed in order to fit the elevated requirements The possibility to tailor the physical and tribological properties of composite materials

High Temperature Self

2013-4-29of new high temperature self-lubricating materials that are capable of satisfying the multifunctional needs of more advanced mechanical systems [10-15] The following tribological issues addressed in this chapter are presented: i High temperature self-lubricating alloys ii Ni matrix high temperature self-lubricating composites iii

High‐Temperature Tribological and Self‐Lubricating

Further it has been observed that a self‐lubricating layer is formed at the interface Scanning electron microscopy and X‐ray photoelectron spectroscopy have been used to investigate the formation of the self‐lubricating copper‐rich layer at the interface between the disk and counterface materials

Archive ouverte HAL

Self-lubricating polymer-based composites are used in space and in aircraft mechanisms as materials for solid lubricated systems Such composites mostly consist of a polymeric matrix and fillers of two kinds: hard fillers (fibres made of glass or of minerals) and solid lubricating particles (made of MoS 2) Their advantages are that they provide their own lubrication and they can be used in

Thermodynamic characteristics and tribological properties of

The lanthanum/serpentine composite powders(2 μm) were prepared out of the raw materials of rock-forming serpentine and synthetic La-containing compound by high-energy mechanical ball-milling method The thermodynamic and structural stability of the as

Tribological behaviour of C/C–SiC composites—A review

2017-8-25SiC and self-lubricating action of carbon The mechanical properties of carbon–carbon silicon carbide (C/C–SiC) composites are not affected at high temperature [8 9] C/C–SiC composites have lower density (about 2 0 g/cm3) longer service life and higher thermal shock resistance as compared to traditional brake materials

Vacuum tribological behaviour of self lubricant

High temperature resistant self-lubricant coatings are needed in space vehicles for components that operate at high temperatures and/or under vacuum Thick composite lubricant coatings containing quasicrystalline alloys (QC) as the hard phase for wear resistance have been deposited by thermal spray The coatings also comprise lubricating materials (silver and BaFSUB2/SUB


2019-8-22The study of polymer-based self-lubricating composite materials with local minerals is considered The essential influence of the type and quantity of modified mineral fillers as well as their particles size on the tribological and technological properties of composite materials are established For the purposeful development of new wear-resistant

Tribological behaviour of self

2019 (English) In: Tribological behaviour of self-lubricating polymercomposite bearing materials during long-time dry sliding 2019 Conference paper Oral presentation with published abstract (Refereed) Abstract [en] Thermosets and thermoplastics containing PTFE are used in marine and hydropower applications due to their long service life and self-lubricity in dry and water-lubricated contacts

Vacuum Tribological Behaviour of Self

2014-9-22tance 10 The coatings also comprise lubricating materials (silver and BaF 2-CaF2 eutectic) and NiCr as the tough component Composite coatings of different composition have been developed and op timised in order to improve the microstructure of the coatings and the tribological behaviour 2*11'12 This paper describes the vacuum tribological prop