Microstructure of copper surface treated by runaway electron preionized diffuse discharge in atmospheric pressure nitrogen stream

V. S. Ripenko; M. V. Erofeev; M. A. Shulepov; V. F. Tarasenko

doi:10.1117/12.2303605

16 April 2018 Microstructure of copper surface treated by runaway electron preionized diffuse discharge in atmospheric pressure nitrogen stream

V. S. Ripenko, M. V. Erofeev, M. A. Shulepov, V. F. Tarasenko

Author Affiliations +

Proceedings Volume 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII; 1061421 (2018) https://doi.org/10.1117/12.2303605
Event: XIII International Conference on Atomic and Molecular Pulsed Lasers, 2017, Tomsk, Russia

Abstract

The paper presents experimental results of the investigation of microstructure of copper surface layer after treatment by runaway preionized diffuse discharge in a stream of atmospheric nitrogen. It is shown that after 100,000 processing pulses on the surface of copper specimens, a disoriented surface layer with a depth of up to 200 nm is formed. Moreover, the results of X-ray phase analysis did not reveal changes in the phase composition of the surface. However, as a result of surface treatment by plasma of a diffuse discharge, the lattice becomes larger and the microstress increases.

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V. S. Ripenko, M. V. Erofeev, M. A. Shulepov, and V. F. Tarasenko "Microstructure of copper surface treated by runaway electron preionized diffuse discharge in atmospheric pressure nitrogen stream", Proc. SPIE 10614, International Conference on Atomic and Molecular Pulsed Lasers XIII, 1061421 (16 April 2018); https://doi.org/10.1117/12.2303605

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