Type of tribological system

Vizintin, J., M. Kalin, K. Dohda, and S. Jahanmir., eds. 2004. Tribology of Mechanical Systems A Guide to Present and Future Technologies. New York ASME Press. Addresses lubrication and appropriate Inbricants for all types of mechanical systems. Included are typical metal-based systems, such as engines, but also covered are materials, such as ceramics, polymers and composites. 

In general, two types of first-principles tribological simulations have been reported in the literature. The first type of simulation is based on static energy calculations in which the dynamics of the system are not considered.68,69 A typical simulation would be set up as follows. An initial structure is generated where the two surfaces are aligned in the desired configuration and fixed at some constant separation distance D. The structure is relaxed, and the energy is recorded. Then the top is layer is moved by some small distance relative to... 

In boundary lubrication, solid surfaces are so close together that appreciable contact between opposing asperities is possible. Under these conditions, friction and wear are determined predominantly by interactions between the solid and the liquid phases [15]. The chemistry of friction surfaces and their state therefore determine their interaction with the lubricant components. However, this type of interaction, especially in industrial tribological systems, is very complex and difficult to explain, even applying the most modern analytical techniques. 

Neale, M. J., ed. 1995. Tribology Handbook, 2nd ed. Oxford, U.K. Butterworth-Heinemann. This work is very applications-directed and touches only marginally on theory. Performance characteristics are primary in presentation. Various types of bearings, drives, seals, lubricants and lubrication systems are addressed as well and failures, environmental effects, and maintenance and repair. 

In order to describe the tribologic properties and associated mechanisms of the various types of colloids previously mentioned attention will be focused on representative examples of each type of system described in Table 4.1. 

There are numerous examples where the adhesive properties have been improved in polymer-nanoparticle systems. Tribological coatings (of Ni-PTFE type) are characterized by the homocoagulational interaction between the polymer and nanoparticles that occtns at the moment of their isolation on the electrode. ... 

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