Influence of erosion and redeposition processes on the lifetime of impurity control components: An assessment for TiC coatings

Conference · Sat Sep 01 04:00:00 EDT 1984 · Fusion Technol.; (United States)

OSTI ID:5576692

Brooks, J N; Kaminsky, M

A REDEP computer-code-analysis has been performed for the transport, ionization, and redeposition of physically sputtered material in the boundary regions of the FED/INTOR tokamak. The analysis was performed for TiC as a candidate coating material for the bottom limiter and the divertor plate. This analysis provides the first assessment of the influence of preferential sputtering of TiC on sputter erosion and redeposition. The results indicate that at high edge temperatures, the different transport properties of the constituents causes significant differences in both the erosion and redeposition rates for the elemental constituents carbon and titanium. At low plasma edge temperatures, < about 50 eV, TiC is marginally acceptable, having a high gross erosion rate but a fairly low net rate.

• Research Organization: Applied Physics Division Argonne National Laboratory, Argonne, Illinois
• OSTI ID: 5576692
• Report Number(s): CONF-8309103-
• Conference Information: Journal Name: Fusion Technol.; (United States) Journal Volume: 6:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106* -- Metals &amp; Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development &amp; Materials Testing
CARBIDES
CARBON COMPOUNDS
COATINGS
DEPOSITION
DIVERTORS
ENERGY RANGE
EROSION
EV RANGE
EV RANGE 10-100
INTOR TOKAMAK
LIMITERS
MATERIALS
PHYSICAL RADIATION EFFECTS
PROTECTIVE COATINGS
RADIATION EFFECTS
SPUTTERING
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTORS
TITANIUM CARBIDES
TITANIUM COMPOUNDS
TOKAMAK TYPE REACTORS
TRANSITION ELEMENT COMPOUNDS