Open AccessЭлектроды вакуумной камеры под действием дуги в зоне взрывного плавления
Author(s) -
А.И. Кудюкин,
М.Н. Махмудов,
Е.Н. Моос,
В.А. Степанов
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2020.07.49458.396-19
Subject(s) - polyatomic ion , impurity , analytical chemistry (journal) , mass spectrometry , copper , atmosphere (unit) , molecule , chemistry , mass spectrum , diffusion , ion , arc (geometry) , materials science , physics , environmental chemistry , chromatography , meteorology , thermodynamics , organic chemistry , geometry , mathematics
The floatable systems Cu (60%) - Cr (40%) after repeated influence of the arc vacuum discharge find change of atomic concentration of copper (with 53.7 ат. % to 71.8 ат. %) and, respectively, chromium. The mass-spectrometry showed existence in the residual atmosphere of diffusion instruments fragments of the CxHy molecules and molecules desorbed from all details of the camera, ions of residual gas (CO2, H2O, N2, N and their polyatomic compositions). Inheritance of technological impurity from prior operations in a mass spectrum is revealed.