Catalytic effect during friction

Гершман, Иосиф; Гершман, Е. И.

doi:10.3103/s1068366611060067

Cited by 10 publications

(12 citation statements)

References 7 publications

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“…Increasing the reactions' velocity enables an increase of absolute value at the negative part of the production of entropy and to reduce the overall production of entropy in Equation (7). In order to increase the reactions' velocity it is proposed to use a catalyst [34]. This should result in a reduction of the wear intensity.…”

Section: Reactionmentioning

confidence: 99%

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Application of the Self-Organization Phenomenon in the Development of Wear Resistant Materials—A Review

Гершман¹,

Гершман²,

Миронов³

et al. 2016

Entropy

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Application of the phenomenon of self-organization for the development of wear resistant materials has been reviewed. For this purpose the term of self-organization and dissipative structures as applied to tribology have been discussed. The applications of this phenomenon have been shown in order to develop new wear resistant-and antifriction materials. Specific examples have been shown for the application of the self-organization phenomenon and the generation of dissipative structures for the formation of tribotechnical materials with enhanced wear resistance for current collecting materials and antifriction materials of bearings.

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Section: Reactionmentioning

confidence: 99%

“…In order to increase the reactions' velocity it is proposed to use a catalyst [34]. This should result in a reduction of the wear intensity.…”

Section: Reactionmentioning

confidence: 99%

Application of the Self-Organization Phenomenon in the Development of Wear Resistant Materials—A Review

Гершман¹,

Гершман²,

Миронов³

et al. 2016

Entropy

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show abstract

“…To reduce the wear rate, intensifying these processes and shifting the start of self-organization to mild friction conditions is necessary. For example, tribological material was alloyed by catalysts, resulting in lower wear rate [11]. Complex of the alloying of tribological materials, facilitating the passage of self-organization, results in lower wear rate [12,13].…”

Section: Introductionmentioning

confidence: 99%

Description of Seizure Process for Gas Dynamic Spray of Metal Powders from Non-Equilibrium Thermodynamics Standpoint

Гершман

Fox-Rabinovich

et al. 2016

Entropy

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Abstract:The seizure process has been considered from the non-equilibrium thermodynamics and self-organization theory standpoints. It has been testified that, for the intensification of powder mix particles seizing with the substrate during spraying, it is required that relatively light components of the powder mix should be preferably transferred into the friction zone. The theory inferences have been experimentally confirmed, as exemplified by the gas dynamic spray of copper-zinc powders mix.

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“…generated during friction structures, SS) [171]. The depth of the layer can be lower by an order of magnitude (or more) than that typically associated with damage phenomena [170].…”

Section: Tribofilms (Secondary Structures)mentioning

confidence: 99%

Hierarchical adaptive nanostructured PVD coatings for extreme tribological applications: the quest for nonequilibrium states and emergent behavior

Fox-Rabinovich

Yamamoto

Beake

et al. 2012

Science and Technology of Advanced Materials

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Adaptive wear-resistant coatings produced by physical vapor deposition (PVD) are a relatively new generation of coatings which are attracting attention in the development of nanostructured materials for extreme tribological applications. An excellent example of such extreme operating conditions is high performance machining of hard-to-cut materials. The adaptive characteristics of such coatings develop fully during interaction with the severe environment. Modern adaptive coatings could be regarded as hierarchical surface-engineered nanostructural materials. They exhibit dynamic hierarchy on two major structural scales: (a) nanoscale surface layers of protective tribofilms generated during friction and (b) an underlying nano/microscaled layer. The tribofilms are responsible for some critical nanoscale effects that strongly impact the wear resistance of adaptive coatings. A new direction in nanomaterial research is discussed: compositional and microstructural optimization of the dynamically regenerating nanoscaled tribofilms on the surface of the adaptive coatings during friction. In this review we demonstrate the correlation between the microstructure, physical, chemical and micromechanical properties of hard coatings in their dynamic interaction (adaptation) with environment and the involvement of complex natural processes associated with self-organization during friction. Major physical, chemical and mechanical characteristics of the adaptive coating, which play a significant role in its operating properties, such as enhanced mass transfer, and the ability of the layer to provide dissipation and accumulation of frictional energy during operation are presented as well. Strategies for adaptive nanostructural coating Topical Review design that enhance beneficial natural processes are outlined. The coatings exhibit emergent behavior during operation when their improved features work as a whole. In this way, as higher-ordered systems, they achieve multifunctionality and high wear resistance under extreme tribological conditions.

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Catalytic effect during friction

Cited by 10 publications

References 7 publications

Application of the Self-Organization Phenomenon in the Development of Wear Resistant Materials—A Review

Application of the Self-Organization Phenomenon in the Development of Wear Resistant Materials—A Review

Description of Seizure Process for Gas Dynamic Spray of Metal Powders from Non-Equilibrium Thermodynamics Standpoint

Hierarchical adaptive nanostructured PVD coatings for extreme tribological applications: the quest for nonequilibrium states and emergent behavior

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