Abstract
There has been little research into the contact areas between electric brushes and collectors during sliding interactions due to the difficulty of observing them. A layer of nanosized wear particles forms on the brush contact due to stochastic interactions between the surfaces that give the layer a mottled/speckled structure. This causes the output signal current or voltage to fluctuate. Taking a new approach, we investigate different polyhedral nanoparticle shapes, considering each particle to be enclosed in a bounding cube. Here we focus on Joule's first law and assume that the particles are flattened due to electric currents, leading to Joule heating and hence temperature changes. Our results show that the degree of wear particle dispersion has a significant effect on the wear rate and electrical contact durability.
| Original language | English |
|---|---|
| Article number | 143999 |
| Journal | Applied Surface Science |
| Volume | 500 |
| DOIs | |
| Publication status | Published - 15 Jan 2020 |
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Keywords
- Close packed structure
- Debris detachment
- Numerical simulation
- Surface roughness
- Tribological interaction
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films
Cite this
Nanolayer in brush collector contact under Joule heating. / Deeva, Vera; Slobodyan, Stepan.
In: Applied Surface Science, Vol. 500, 143999, 15.01.2020.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nanolayer in brush collector contact under Joule heating
AU - Deeva, Vera
AU - Slobodyan, Stepan
PY - 2020/1/15
Y1 - 2020/1/15
N2 - There has been little research into the contact areas between electric brushes and collectors during sliding interactions due to the difficulty of observing them. A layer of nanosized wear particles forms on the brush contact due to stochastic interactions between the surfaces that give the layer a mottled/speckled structure. This causes the output signal current or voltage to fluctuate. Taking a new approach, we investigate different polyhedral nanoparticle shapes, considering each particle to be enclosed in a bounding cube. Here we focus on Joule's first law and assume that the particles are flattened due to electric currents, leading to Joule heating and hence temperature changes. Our results show that the degree of wear particle dispersion has a significant effect on the wear rate and electrical contact durability.
AB - There has been little research into the contact areas between electric brushes and collectors during sliding interactions due to the difficulty of observing them. A layer of nanosized wear particles forms on the brush contact due to stochastic interactions between the surfaces that give the layer a mottled/speckled structure. This causes the output signal current or voltage to fluctuate. Taking a new approach, we investigate different polyhedral nanoparticle shapes, considering each particle to be enclosed in a bounding cube. Here we focus on Joule's first law and assume that the particles are flattened due to electric currents, leading to Joule heating and hence temperature changes. Our results show that the degree of wear particle dispersion has a significant effect on the wear rate and electrical contact durability.
KW - Close packed structure
KW - Debris detachment
KW - Numerical simulation
KW - Surface roughness
KW - Tribological interaction
UR - http://www.scopus.com/inward/record.url?scp=85073109602&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073109602&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2019.143999
DO - 10.1016/j.apsusc.2019.143999
M3 - Article
AN - SCOPUS:85073109602
VL - 500
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
M1 - 143999
ER -