Surface behavior under ion bombardment in a fusion device

Journal Article · Sat Jan 01 04:00:00 EST 1977 · J. Vac. Sci. Technol.; (United States)

DOI:https://doi.org/10.1116/1.569303· OSTI ID:7316192

Martel, J G; St-Jacques, R G; Terreault, B

First wall, divertors, and other components of the vacuum chamber of a fusion reactor will be submitted to ion bombardment from the thermonuclear plasma. The effects of this bombardment on the materials must be known in order to foresee and correct any major problem. Particular attention must be given to the erosion of the materials. The major mechanisms responsible for wall erosion in a fusion device, namely sputtering, blistering, and evaporation, are revised. The erosion rate due to sputtering is reported for different materials and bombarding energies. A review of the effects of blistering on surface morphology and erosion is made as a function of energy, ion dose, and temperature of the material. The evolution of surface temperature under various bombardment power is given and correlated to probable evaporation rates. The relative importance of these different phenomena is assessed.

• Research Organization: INRS-Energie, Varennes, Quebec, Canada
• OSTI ID: 7316192
• Journal Information: J. Vac. Sci. Technol.; (United States), Journal Name: J. Vac. Sci. Technol.; (United States) Vol. 14:1; ISSN JVSTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BEAMS
ELEMENTS
EROSION
EVAPORATION
FIRST WALL
ION BEAMS
METALS
NIOBIUM
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REFRACTORY METALS
SPUTTERING
SURFACES
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTOR WALLS
TRANSITION ELEMENTS