Hydrogen isotope retention in B{sub 4}C coating on RGT graphite under high heat fluxes of DIII-D divertor plasma

Conference · Sat Nov 01 04:00:00 UTC 1997

OSTI ID:552778

Opimach, I V; Buzhinskij, O I ^[1]; West, W P ^[2]; Wampler, W ^[3]

---

1. TRINITI, Troitsk (Russian Federation)
2. General Atomics, San Diego, CA (United States)
3. Sandia National Labs., Albuquerque, NM (United States); and others

The results of the investigation of retention and thermal desorption of hydrogen isotopes of B{sub 4}C 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.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 552778
• Report Number(s): SAND--97-2728C; CONF-971065--; ON: DE98001041
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ADSORPTION
BORON CARBIDES
DESORPTION
DIVERTORS
DOUBLET-3 DEVICE
GRAPHITE
HEAT FLUX
HYDROGEN ISOTOPES
SURFACE COATING
THERMAL CONDUCTIVITY