Open AccessCOMPOSITE Cu-Cr MATERIALS UNDER THERMAL ACTION OF ELECTRIC ARC DISCHARGE PLASMA
Author(s) -
A. Murmantsev,
A. Veklich,
V. Boretskij,
Milada Bartlová,
Lukáš Dostál,
J. Píška,
David Šimek,
A. Tolochyn
Publication year - 2021
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2021-131-098
Subject(s) - materials science , plasma , electric arc , composite number , vapours , sintering , analytical chemistry (journal) , electrode , plasma arc welding , electron temperature , thermodynamic equilibrium , composite material , atomic physics , thermodynamics , chemistry , physics , quantum mechanics , chromatography , neuroscience , welding , biology
The results of optical emission spectroscopy (OES) investigation of plasma of electric arc discharges in steadystate mode between Cu-Cr composite electrodes, manufactured at different sintered temperatures: 750, 850, 950 or 1050 °C, is presented. In particular, the impact of sintering temperature on erosion resistanceof such composite materials, which was determined in indirect manner by estimation of metal vapours content in the midsection of discharge gaps, is studied by the analysis of plasma parameters. These contents were calculated in assumption of local thermodynamic equilibrium (LTE) on the base of experimentally obtained radial distributions of plasma temperature and electron density.