Nikolai Myshkin

• Full Professor
• Head of Department at Metal-Polymer Research Institute of National Academy of Sciences of Belarus, Gomel, Belarus

The effect of co-deposited graphene oxide (GrO) modified with COOH groups on the tribological characteristics of electrolytic nickel-molybdenum coatings has been studied. The coatings were formed on the surface of polished high-carbon steel by electrodeposition from an aqueous electrolyte based on nickel sulfate (NiSO4) and sodium molybdate (Na2MoO...

the editors for the book "Biotribology of Engineering Materials: principles, modeling, and progress" published by Elsevier in 2026. The book is prepared to cover numerous topics related to biomaterials and medical tribology including basics, applications, modern research, development, and failure analysis. The proposed book is a source of informati...

It is of great interest to realize controllable tribo-designs of a large variety of motion components operating under starved lubrication conditions. In this work, g-C3N4 nanosheets were prepared and uniformly dispersed into pure epoxy (EP) matrix. Especially for sliding with only 5 μL oil supply. In comparison to neat EP, friction coefficient and...

Attapulgite is one kind of phyllosilicate minerals of abundant reserves and rather low costs, and the unique structure of attapulgite have attracted wide attention from fields of photocatalysis and dye adsorption etc. In the present work, exfoliated attapulgite nanofibers were incorporated into polyetheretherketone (PEEK) and PEEK filled with short...

Sustainable Development Goals include very important topic of industry and innovation (SDG9) where tribology, defined as the science and technology of interacting surfaces in relative motion, can play very important role. It can be explained by the losses connected with friction and wear in machines estimated by significant portion of the gross nat...

Corrosion and wear products of metallic implants can lead to severe adverse tissue reactions. However, there is an absence of effective means to reduce the tribocorrosion of metal. The main purpose of this study is to reveal a mechanism of engineering a barrier layer on metal surfaces via adding functional particles into the polymer counterpart. B4...

Problems of friction theoretical analysis and its practical applications are considered. It is mentioned that lack of theoretical basics has nor damped the progress of tribology in its practical aspects. The engineering tribology has achieved remarkable results in saving energy, materials, and labor equal to some percent of the GNP in developed cou...

This chapter presents the methods of monitoring the water content in industrial oils allowing for servicing and prevention of failures of equipment. The most common devices for on-line real time monitoring of the water content in oils are nowadays based on capacitive sensors and polymer absorbing films. Their advantage is in cost-efficiency and sim...

The chapter considers the predictive maintenance of machines and mechanisms basing on wear debris analysis because they relate to the mode and severity of wear. Review of laboratory, portable and on-line wear monitoring techniques based on wear debris analysis is presented. It is shown that if it is necessary to have maximal information on the wear...

This chapter describes the main trends in tribodiagnostics: development of systems for continuous monitoring; increasing the number of sensors built as standard elements in the oil line of engines, turbines, and other heavy machinery; development of software including methods of artificial intelligence; and reduction of costs of tribodiagnostics pr...

This chapter is devoted to monitoring the oil viscosity as one of the major physicochemical factors of quality and efficiency of oil. The review of methods of monitoring the oil viscosity presented in the chapter shows that at present, portable viscometers requiring periodic sampling of oil are widely applied; however real-time on-line monitoring i...

This chapter considers the on-line monitoring in tribology and industrial lubrication. Basic characteristics of oil and laboratory analytical methods are discussed. It is shown that growing requirements to performance of oil promote the development of new methods and instruments for condition monitoring. The devices for on-line monitoring based on...

This chapter considers the control of the oil contamination, by products of incomplete combustion (soot). Up-to-date requirements which set the necessity of development of portable monitoring devices built in the car lubrication system are considered. Laboratory methods, as well as portable and built-in devices, designed for control of soot concent...

Polymer tribology is a fast growing area owing to increasing applications of polymers and polymer composites in industry, transportation, and many other areas of economy. Surface forces are very important for polymer contact, but the real origin of such forces has not been fully investigated. Strong adhesive interaction between polymers leads to an...

Purpose To review the advances in mechanics and tribology of polymers and polymer-based materials. It is focused on the understanding of correlation of contact mechanics and tribological behavior of polymers and polymer composites with taking account of surface forces and adhesion in the contact. Design/methodology/approach Mechanical behavior o...

Aggregative states of matters are governed by ratio of average kinetic energy of molecular heat motion and their potential energy. Intermolecular forces are short-term; they reveal itself at low distances comparable with molecular size, unlike the long-tern forces (gravitational, electromagnetic etc.).

Development of the efficient lubricants can improve durability of tribosystems and save energy in machinery. An optimum and cost-efficient trend is to improve tribological performance of the available lubricants by introduction of suitable additives. The experience shows that liquid-crystal cholesterol compounds (LCCC) can acquire planar orientatio...

At the present time there is no doubt that precision tribotechnic tests can be implemented using the methods and devices which are based on modern advances in digital circuitry. Thus, using them methods some fundamental results in the friction of solids have been obtained.

Increasing operating life of current equipment, reducing its energy capacity, as well as the intensification of technological processes in mechanical engineering is closely related to the time-effective development of new lubricants. Analysis of domestic and foreign experience shows that improving lubricant materials by means of introduction of LC-...

We meet friction processes quite often in everyday life. As for instance, when we move bodies relative to each other ( kinetic friction) or try to put in motion various bodies at rest (static friction).

This book offers readers a concise yet comprehensive introduction to a set of diagnostic methods for on-line condition monitoring of lubricated tribosystems used in industry. It covers the latest trends in on-line tribodiagnostics, an important and rapidly developing area of tribology. The book also reports on new tools as they have been developed...

This book discusses the tribological, rheological and optical properties of liquid-crystal nanomaterials as well as lubricant media. It also describes the formation of liquid-crystal materials and the application of cholesteric liquid-crystal compounds in technical friction units and in human and animal joints. Further, it shows the connection betw...

Volume 18 addresses friction and wear from a systems perspective, while providing a detailed understanding of why it occurs and how to control it. It explains the basic theory of friction and wear, and offers valuable insight on the forces, mechanisms, and interactions that are involved. It examines common wear scenarios, including wear by particle...

Features • Presents a comprehensive survey of the mechanics and materials science of electrical contacts applied to design, development, and manufacturing • Examines the effects of lubricants, materials, and coatings on electrical performance and contact reliability • Offers various methods to improve reliability, serviceability, and performance at...

Sunflower, corn, rapeseed, olive, and linseed oils were used for investigation. Their fatty-acid compositions have been evaluated by gas chromatography. The tribological properties were determined with a four-ball machine. Flash and set points, static and dynamic viscosity of the oils were estimated by standard methods. The results of tests show th...

The paper treats in brief trends in development of tribology (a concept formulated by Peter Jost) in the half-centennial period, setting a stress on the research history of friction, lubrication and wear processes along with their role in engineering and social life. Actuality of the new tribological trends is stated in economy of energy and materi...

It is shown that in the mineral transformer oil oxidation process the fluorescence spectrum of the oil shifts to the long-wave region. This phenomenon lies at the foundation of the method of determination of the degree of electroinsulating oil oxidation in real time. The oxidation state is determined by measuring the diagnostic parameter, i.e., the...

There are many options for tribological applications of basic polymers primarily as matrices and fillers of compound material due to the structural peculiarities of polymers. The polymer materials for tribosystems and their processing technique are briefly described. It is shown that composites with thermoplastic matrix are effective antifriction m...

Recent advances in studies of 3D-organization of surfaces microgeometry are presented. Methods of surface roughness measuring are considered during comparing their resolution. Specification of rough surface by 2D and 3D feature sets is demonstrated. Significance of lateral organization of roughness for solving tribological problems is shown.

A contact adhesion meter devised with a sensitive electromagnetic scale with negative feedback served to investigate the forces of adhesion between the specimens from steel, silicon and titanium oxide shaped as a silicon sphere. Controllable feed of the specimens to the test body has enabled to determine the relation between the forces affecting th...

The possibilities of applying modern achievements in the field of contact mechanics and tribophysics to improve the operation efficiency of the electrical contacts have been considered. The formation of the real contact area and its correlation with electrical conductivity has been analyzed. The methods of increasing the working capacity of electri...

The growth concentration of cholesteric liquid crystals (CLCs) in lubricating materials was found to reduce the time needed to achieve the optimal tribological characteristics. It was also noted that, in the presence of small amounts of CLC in the lubricating material, the initial microrelief of the friction surfaces transformed into the flat-toppe...

This work covers an analysis of the prospective developments and research reviewed by scientists of various countries and displayed in the journal Friction and Wear over the last 35 years.

State of the art is presented in studies of scale and spatial organization of contact surfaces. Methods of surface morphology analysis are discussed while comparing their resolution and scale of application. Rough surface description by 2D and 3D sets of parameters is evaluated. Importance of textural organization of surface irregularities for trib...

Polymer tribology is based on the analysis of abrasion, adhesion, and fatigue of polymer materials in a friction contact. The structural features of polymers provide a variety of tribological applications of basic polymers mostly as matrices and fillers of composite materials. Recently polymer nanocomposites are used for making components of variou...

The mechanical properties of wear-resistant bicomponent In and Al coatings have been studied. It has been shown that two-layer coatings are characterized by plastic deformation, and a bicomponent coating is deformed elastically.

The design of the reciprocating tribometer for testing materials under the sphere–plane scheme in the millisize range of loads and speeds is discussed. The device enables elastic and elasto�plastic contact for nearly all materials for friction units. Wear measurements have been carried out in a system based on a Lin� nik micro interferometer. The m...

We review contact mechanics with emphasis on the rheological (time dependent) properties of polymers and their relations to surface roughness, material properties, and friction as well as wear behavior of rubbing polymer surfaces. The main concept of polymer mechanics related to tribology consists of three basic elements involved in friction: defor...

The paper studies the effect of alumosilicate nanofillers of tubular and lamellar shape on the friction and wear of epoxy composites. It is shown that the influence of concentration and shape of the fillers on the tribological behavior of the composites is due to variations in their viscoelastic properties and shielding of the contact area of the m...

The paper presents the analysis of friction and wear behavior of polymer nanocomposites in comparison with traditional polymers. The process of compounding nanofillers with molten thermoplastics is described while using various binders. Reactive extrusion is considered as a basic method of preparing polymer nanocomposites. The data on tribotests of...

An analysis has been made of the literature on tribology of polymer nanocomposites prepared by compounding nanofillers with molten thermoplastics. A process is described for preparing nanocomposites with various polymer binders by reactive extrusion. The introduction of nanofillers (carbon nanomaterials, layered clays, metals, and metal-containing...

Current knowledge on scale and spatial organization of engineering surfaces is presented. Main methods of surface roughness analysis are discussed. A review of theoretical and practical problems in tribology involving concept of rough surface is presented. Critical analysis of rough surface description in the evolution from 2D to 3D set of paramete...

SynonymsContact mechanics of polymers; Contact of polymers; Viscoelastic contactDefinitionPolymer contact mechanics is an area of contact mechanics focused on the influence of rheological material properties on the contact of polymer solids.Scientific FundamentalsViscoelastic Stress–Strain RelationsThe mechanical behavior of polymers is governed by...

Thin NiP and NiP+SiO2 coatings were deposited by electroless techniques on aluminum alloy plates. Dry sliding tests against Al2O3 counterbody with the ball on plate contact geometry and reciprocal moving were carried out. The results of tribological tests showed that the friction coefficient of the modified coating at loads above 500 mN by 3-4 time...

The paper reports the results of the indentation of Ni-P coatings on substrates made of various materials and the results of the calculation of their elastic modulus. The results of the tribological study of coatings of different thicknesses are presented. The obtained values of the elastic modulus and friction coefficient are used to determine the...

The problems of hardware and methodology of ground-based and on-board tribotesting are discussed as well as the main features of space test equipment. New materials for space tribosystems are presented. The method of estimation and selection of equivalent conditions of space-and ground-based tribotestings is considered. The method is based on compa...

The paper deals with the study of the tribological behavior of thin (1 and 5 μm thick) Ni-P coatings formed on plates made of electrotechnical copper by electroplating and chemical deposition. It has been found that after heat treatment, owing to diffusion processes, the coating components are capable of penetrating into the substrate material—to a...

Recent developments in micromechanics and nanotribology have made adhesion effects very important in the study of actual contact formation and sliding friction. The present work considers the experimental and simulation data on the formation of the adhesion contact and sliding friction for rough surfaces. The simulation of discrete contact was carr...

Lubricating oil condition yields information about its performance and reflects the processes evolving in the tribosystem as a whole. In-line oil analysis systems provide timely data on the need for routine service or early warning of oncoming catastrophic events. A developed miniature low cost in-line detector is presented that enables in-line int...

Surface phenomena and the structure of polymers affect essentially their tribological characteristics, the adhesion of polymers to solids being one of the dominating factors. The latter is explained, in particular, by the adsorption (chemisorption) of the functional groups, variations in the polymer crystallinity and morphology, constrained molecul...

Modern trends in miniaturization of components cause the necessity of evaluation of tribological characteristics at conditions close to real operation. Existing methods and equipment such as AFM cannot give the adequate data on tribological performance of tiny tribounits, because the test contact loads, sliding velocity, and contact areas are not s...

The lubricating oil is an essential component of a tribosystem. A miniature low-cost integrated inline oil monitoring detector was developed a the V. A. Belyi Metal-Polymer Research Institute of the National Academy of Sciences of Belarus in collaboration with the Korean Institute of Science and Technology. The detector consists of an integrated pr...

The paper presents a brief overview of the achievements of the Russian and Soviet tribology schools. The contribution of the Soviet tribology leader Prof. Kragelskii into the science of friction, wear, and lubrication is discussed. The basic results of tribologists from the main research centers in Russia are considered. The development of tribolog...

An analysis has been made of the literature on friction and wear of polymer nanocomposites prepared by compounding nanofillers with molten thermoplastics. A process is described for preparing the nanocomposites with various binders, for example, polar and nonpolar thermoplastics, aliphatic, aromatic, and partially aromatic polymers, as well as amor...

Optical absorption of infrared radiation under total internal reflection in a novel sensor has been utilized to investigate the soot contamination of diesel engine oil by response surface methodology in factorial experiments. Sensor response showed highly significant dependence on oil soot concentration and temperature, in which the effect of the s...

Friction modes of self-assembled monomolecular coatings (SAM) based on dodecyclophosphoric acid ester and its derivatives on a silicon substrate are investigated. The antifriction properties of the films are shown to be due to their ability to decrease the interfacial energy of friction contact. Models are suggested for friction force computation f...

The present work considers simulation of contact area formation using the contact models of Hertz, DMT and JKR. The purpose of this work was to study development of real contact between rough surfaces taking into account the action of adhesion. The model of the Winkler foundation is used to describe the elastic properties of the rough surface. Soli...

Fundamentals and methods of morphological analysis of images of friction surfaces and wear debris are discussed in terms of practical problems of tribodiagnostics. A review of widespread approaches to the description of texture, shape, and color of tribological objects is presented. Their parametrical models and methods of classification of morphol...

Estimation is considered of the temperature resistance of boundary lubricating layers during rubbing. A new experimental technique is proposed for evaluating the limiting temperature of lubricant disorientation on a metal surface with the use of electric current passing through the contact zone of a microtribometer. It is shown that this technique...

The paper presents data on the investigation of the conductivity of thin layers (10-7 — 10-4m) of mineral oils and hydrocarbons between metal electrodes. Noble and commercial metals (gold, platinum, copper, aluminum) have been used. Part of lubricant conductivity of the contact of rough metal surfaces has been evaluated by computation and testing.

Intrinsic fluorescence emission of oil was used to develop a technique and detector for evaluating oil degradation. Test results for hydraulic oils with and without zinc dialkyldithiophosphates additives and calcium-based dispersant were in conformance with the results of optical emission spectrometry, particulate counts, optical microscopy, total...

A brief analysis is presented of current trends in tribology in terms of the development of Kragel’skii’s scientific ideas. Among these trends are studies of the transition to friction and wear on the micro-and nanolevels, development of new facilities for micro-and nanotribology, tribotests in space and at super-high sliding speeds, application of...

A miniature integral detector is presented that enables in-line monitoring of the lubricating material in trybosystems by measuring and evaluating four diagnostic parameters simultaneously: chemical disintegration, total contamination content in the oil, water content, and temperature. The detector comprises a self-test system, self-tuning controll...

The paper presents a brief overview of modern trends in tribology among which are the macro- to micro- and nano-transition, the development of new experimental apparatus for micro- and nanotribology, the creation of space tribometers, the application of 'smart' magnetic nanofluids and superlubricity, and the development of in-line and portable syst...

Literature data and original research in the field of the technology and tribology of nanocomposites produced by the dispersion of nanofillers including organoclay, carbon nanomaterials, and metal-containing compounds in thermoplastics and elastomers melts are analyzed. The features of their structure and tribological behavior are discussed. The co...

Current interest in evaluating the oil condition in tribosystems is discussed. Fluorescent express-methods for oil condition monitoring are analyzed and their main advantages and disadvantages are noted. The basic concept of the fluorescent method developed for evaluating oil oxidation rate by recording the shift of fluorescence spectrum to the lon...

This book describes practical applications of the subject and presents valuable design information for l mechanical and electrical engineers. In fact, the information contained in the book serves as an excellent source of information not only for anyone developing electrical equipment but for postgraduate students who are concerned about the passag...

Measurements of fluorescence emission of oil were used to develop a technique and sensor for detecting hydraulic oil quality in operation. Test results for hydraulic oils corroborate very well with optical emission spectrometry, particle counter, optical microscopy, total acid number, and viscosity test results. Fluorescence emission ratio paramete...

At present, there is a strong trend towards a transition from macro to micro and nanoscale that may give a new insight into the basic problems of tribology, such as the influence of deformation and adhesion mechanisms on friction and wear. The atomic force microscope provides a unique opportunity to obtain the 3D surface topography at nanoscale, to...

Tribological behavior of polymers is reviewed since the mid-20th century to the present day. Surface energy of different coatings is determined with new contact adhesion meter. Adhesion and deformation components of friction are discussed. It is shown how load, sliding velocity, and temperature affect friction. Different modes of wear of polymers a...

The paper presents a model of elastic contact with consideration of adhesion based on the analysis of experimental data on the force - distance dependence obtained when approaching two solids. The proposed model is based on the developed theory of adhesion interaction of bodies, separated by a small gap.

Techniques of measuring different-scaled asperities are described and a method of separating different asperities presenting simultaneously on the real surface is proposed. Based on the analysis of the known contact models including the model of adhesion contact and the two-level model, the general algorithm of their construction is presented.

The software/hardware description for cyclic testing of thin coatings using a scanning probe microscope is presented. Tribological properties of thin coats used in MEMS techniques are subjected to comparative analysis. The effect of temperature and other factors on friction and adhesion forces is described.

We analyzed how the approach developed for the microindentation of non-uniform elastic solids can be adapted to analyze the atomic force microscopy (AFM) probing of ultrathin (1–100 nm thick) polymer films on a solid substrate, as well as polymer films with a multilayered structure. We suggested that recent Johnson's modification of the contact mec...

The approach developed for the microindentation of layered elastic solids was adapted to analyze atomic force microscopy probing of ultrathin (1–100 nm-thick) polymer films on a solid substrate. The model for analyzing microindentation of layered solids was extended to construct two- and tri-step graded functions with the transition zones accountin...

There is a scale factor affecting the data for macro and micro systems, so the test equipment should be designed with account of this factor. We describe such equipment including contact adhesion meter, rotary and reciprocating microtribometers. We investigated the adhesion forces between the ball probes and materials used in microsystems: silicon...

The effect of water content in a lubricant on its qualitative parameters intrinsic for the tribosystem lifespan has been analyzed. Tough requirements to service characteristics of lubricating oils have stirred the activity in developing new methods and mean? of monitoring water content. The water content control devices in lubricants incorporating...

A system of registration of acoustic emission is described that is used in combination with a reciprocating microtribometer. The parameters of the measuring channel enable to identify the moments of failure of surface layers against the background of the process of elastic and plastic interactions between microprojections on friction surfaces.