Title :
Hydrogen isotope retention in B4C coating on RGT graphite under high heat fluxes of DIII-D divertor plasma
Author :
Opimach, I.V. ; Buzhinskij, O.I. ; Arkhipov, I.N. ; West, W.P. ; Wampler, W. ; Whyte, D.
Author_Institution :
TRINITI, Troitsk, Russia
Abstract :
The results of the investigation of retention and thermal desorption of hydrogen isotopes of B4C coated RGT (a recrystallized graphite with high thermal conductivity, 600 W/mK) after the exposure to high heat flux in the divertor strike point region of DIII-D using the DIMES sample exchange system are reported. It is shown that the material is very promising for plasma facing elements of tokamaks
Keywords :
boron compounds; fusion reactor materials; hydrogen; thermally stimulated desorption; B4C; B4C coating; C; DIII-D; DIMES sample exchange system; H; H isotope retention; RGT graphite; plasma facing elements; recrystallized graphite; thermal desorption; tokamak; Coatings; Hydrogen; Isotopes; Plasma chemistry; Plasma diagnostics; Plasma temperature; Surface morphology; Testing; Thermal conductivity; Tokamaks;
Conference_Titel :
Fusion Engineering, 1997. 17th IEEE/NPSS Symposium
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4226-7
DOI :
10.1109/FUSION.1997.687765
