Surface erosion effects of candidate fusion materials

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

OSTI ID:5652089

Navinsek, B

Some candidate fusion materials such as nickelbase alloys and graphites were studied, because of their importance as first wall components in CTR devices. Polycrystalline samples of Inconel 600, Inconel 625, Nimonic alloy PE 16, nuclear grade graphite ATJ and pyrolytic graphite were investigated. Results for surface damage and topography, blistering, flaking, ion erosion and sputtering yields are reported for irradiations with low energy He/sup +/ ions (5-12 keV) at room temperature, using total ion doses up to 2 x 10/sup 19/ ions cm/sup -2/. SEM, TEM and AES analyses were used to identify surface damage, structure and compositional changes after irradiation. Comparative studies of the ion erosion yield of nickel-base alloys, as measured by the step-height technique, were made. Total sputtering yields were determined dynamically for sputtered films of these alloys using a quartz crystal microbalance. The yields were studied as a function of ion dose, energy and surface roughness.

• Research Organization: J. Stefan Institute, ''E. Kardelj'' University, Ljubljana
• OSTI ID: 5652089
• 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 & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
AUGER ELECTRON SPECTROSCOPY
BLISTERS
BORON ADDITIONS
BORON ALLOYS
CARBON
CARBON ADDITIONS
CHARGED PARTICLES
CHROMIUM ALLOYS
CRYSTALS
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
EROSION
FRAGMENTATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HELIUM IONS
INCONEL 600
INCONEL 625
INCONEL ALLOYS
IONS
IRON ALLOYS
MATERIALS
MATERIALS TESTING
MICROSCOPY
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIMONIC
NIMONIC PE16
NIOBIUM ALLOYS
NONMETALS
PHYSICAL RADIATION EFFECTS
POLYCRYSTALS
PYROLYTIC CARBON
RADIATION EFFECTS
SCANNING ELECTRON MICROSCOPY
SPECTROSCOPY
SPUTTERING
TANTALUM ALLOYS
TESTING
THERMONUCLEAR REACTOR MATERIALS
TITANIUM ALLOYS
TRANSMISSION ELECTRON MICROSCOPY
ZIRCONIUM ADDITIONS
ZIRCONIUM ALLOYS