Two-dimensional spatial distribution of electric-discharge plasma around a frictional interface between dielectric surfaces

Abstract

Articles you may be interested inEffect of the charge surface distribution on the flow field induced by a dielectric barrier discharge actuator

Gas discharge caused by triboelectricity around a contact during friction between insulators

“…Microscopic observation of the triboluminescence made it clear that the gas discharge does not occur inside the contact area but occurs in a micro gap between surfaces of specimens around the contact [9]. It was already revealed that the gas species and pressure determine the characteristic of the discharge of the triboelectricity between insulators [10,11].…”

Spatiotemporal multifractal characteristics of electromagnetic radiation in response to deep coal rock bursts

“…The first one consists of the transient changes in stress-induced electric dipoles and electric charges due to crack-development-induced variable motion, separation and relaxation (Gokhberg et al, 1982;Nagahama and Teisseyre, 1998;Freund et al, 2004;Triantis et al, 2006). The second is the Coulomb field due to accumulation dislocation, sliding and friction of electric charges on the fracture surfaces (Miura and Nakayama, 2001;Muto et al, 2006;Akito and Nobumasa, 2008). EMR signal generation is related to the dislocation and sliding of coal joints, cracks and lattices, as well as crack development.…”

“…(Miura and Nakayama, 2001;Muto et al, 2006;Akito and Nobumasa, 2008). It is clear that the damage caused by several different types of failure such as crack opening, crack propagation and fractional sliding can produce EMR, but their corresponding microemission mechanisms are different.…”

“…The EMR released from coal or rock is a result of the combined action of different microradiation mechanisms (Gokhberg et al, 1982;Nagahama and Teisseyre, 1998;Freund et al, 2004;Triantis et al, 2006;Miura and Nakayama, 2001;Muto et al, 2006;Akito and Nobumasa, 2008). Generation of EM signals is related to the dislocation and sliding of coal joints, cracks and lattices, as well as crack development and could lead to dynamic nonlinear changes of EMR.…”

Ultrahigh vacuum system for advanced tribology studies: Design principles and applications

“…Ultrahigh vacuum and/or controlled ambient atmosphere are the necessary conditions when studying gas-phase lubrication [9], mechanically stimulated gas emission (MSGE) [10][11][12][13][14][15][16][17][18][19][20], triboplasma [21][22][23], triboelectrification [24][25][26], triboluminescence [24,27,28], emission of charged particles [29][30][31], tribochemical reactions [23,[32][33][34], etc. For these studies, conventional tribological test rigs should be combined with various physical, chemical and surface characterization techniques.…”