Sputtering of surface-boronized graphite by hydrogen ion bombardment

The findings of investigation into chemical and physical sputtering of various graphite materials which can be used as protection materials for the first wall of a thermonuclear reactor are presented. Sputtering of hydrogen ions with energy of 9 keV has been carried out in temperature range of 330–8...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nuclear materials 1994-09, Vol.212, p.1206-1210
Main Authors: Kalin, B.A., Yakushin, V.L., Polsky, V.I., Virgilev, Yu.S.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The findings of investigation into chemical and physical sputtering of various graphite materials which can be used as protection materials for the first wall of a thermonuclear reactor are presented. Sputtering of hydrogen ions with energy of 9 keV has been carried out in temperature range of 330–870 K. It has been shown that surface boronizing by the method of chemical transport reactions of MPG-8 graphite decreases chemical sputtering in 2.5–3 times. Deposition of the same coat on carbon glass-ceramic of USB-15 type fully suppresses its chemical sputtering in all temperature range. In the process of sputtering an intensive growth of whiskers composed only of carbon atoms has been observed.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(94)91022-7