Open AccessDependence of the erosion of graphite on flux density for high-temperature irradiation by hydrogen ions
Author(s) -
N. A. Puntakov,
L. B. Begrambekov,
A. V. Grunin,
G. Dolganov
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1396/1/012035
Subject(s) - graphite , ion , irradiation , flux (metallurgy) , materials science , diffusion , hydrogen , carbon fibers , porosity , analytical chemistry (journal) , atomic physics , chemistry , composite material , thermodynamics , nuclear physics , metallurgy , composite number , physics , organic chemistry , chromatography
In this paper, a dependence of the erosion of graphite under a high energy ion flux at temperature of 2050°C on the ion dose is investigated. It is shown that, at ion flux densitiy of 1.42×10 22 ion/m 2 s, irradiation stimulates diffusion processes that lead to the removal of carbon atoms from the bulk of the sample, leading to the formation of a porous layer, whereas, for ion flux density of 1.4×10 20 ion/m 2 s, no such layer is formed.