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TECHNICAL PAPERS

Characteristics and Pattern of Plasma Generated at Sliding Contact

[+] Author and Article Information
Keiji Nakayama, Roman A. Nevshupa

National Institute of Advanced Industrial Science and Technology, Namiki 1-2, Tsukuba, Ibaraki 305-8564, Japan

J. Tribol 125(4), 780-787 (Sep 25, 2003) (8 pages) doi:10.1115/1.1540122 History: Received March 27, 2002; Revised November 07, 2002; Online September 25, 2003
Copyright © 2003 by ASME
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References

Figures

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Apparatuses to measure two-dimensional image of photons emitted from sliding contact from sideward (A) and from backward through the disk (B)
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Apparatuses to measure spectra of photons emitted from the sliding contact (A) and from the plasma generated by gas discharge in a parallel electrodes (B)
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Two-dimensional tribo-photon image measured from the sideward of the pin-on-disk sliding contact; total photon image without filter
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Two-dimensional tribo-photon images measured from the backward through the sapphire disk A: total image without filter, B: UV image after passing the UV transmittable filter, C: IR image after passing the IR transmittable filter.
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Two-dimensional photon image measured from the backward through the disk after passing the IR transmittable filter
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Contour image of total photon emission intensity measured from the backward through the sapphire disk
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A: Tribo-photon spectrum emitted from a contact of a diamond pin (r=300 μm) sliding on a sapphire disk in dry air, B: discharge-photon spectrum emitted from a plasma generated by discharging of dry air in a parallel Al electrodes.
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Spectra of tribo-photons (A) and discharge-photons (B) in N2 gas atmosphere
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Spectra of tribo-photons (A) and discharge-photons (B) in O2 gas atmosphere
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Spectra of tribo-photons (A) and discharge-photons (B) in H2 gas atmosphere
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Spectra of tribo-photons (A) and discharge-photons (B) in He gas atmosphere
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Spectra of tribo-photons (A) and discharge-photon (B) in CH4 gas atmosphere
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Spectra of tribo-photons (A) and discharge-photons (B) in C2H4 gas atmosphere
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Tribo-photon spectrum in He gas atmosphere (A) and the time dependence of peak intensities in the spectra (A)
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(A) Effect of He gas pressure on the total tribo-photon emission intensity and (B) pressure dependence the tribo-photon spectra in He gas atmosphere

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