Ion and fast neutral bombardment of surfaces in controlled fusion devices
The erosion of ferrous- and nickel-alloy walls in fusion reactors from impinging, energetic D, T, He, and Ar ions and neutrals is discussed. The two major machanisms of erosion are sputtering and blistering. Pertinent data are reviewed to obtain estimated or experimental sputtering yields in the energy range 100 eV to 10 keV. The spuntering coefficients for Ar, He, and T are roughly 10/sup 2/, 10, and 1.5 times the value for D (at the same energy). Erosion from blistering is unimportant for Ar, unexamined for D or T, and probably comparable to sputtering for ~10-keV He. (auth)
- Research Organization:
- PPPL (Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States))
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- NSA Number:
- NSA-29-009221
- OSTI ID:
- 4374150
- Report Number(s):
- MATT--1005
- Country of Publication:
- United States
- Language:
- English
Similar Records
Surface behavior under ion bombardment in a fusion device
Chemical implantation, isotopic trapping effects, and induced hygroscopicity resulting from 15 keV ion bombardment of sapphire
Surface erosion effects of candidate fusion materials
Journal Article
·
Fri Dec 31 23:00:00 EST 1976
· J. Vac. Sci. Technol.; (United States)
·
OSTI ID:7316192
Chemical implantation, isotopic trapping effects, and induced hygroscopicity resulting from 15 keV ion bombardment of sapphire
Journal Article
·
Thu Jul 01 00:00:00 EDT 1976
· J. Chem. Phys.; (United States)
·
OSTI ID:7280108
Surface erosion effects of candidate fusion materials
Conference
·
Sat Sep 01 00:00:00 EDT 1984
· Fusion Technol.; (United States)
·
OSTI ID:5652089
Related Subjects
*THERMONUCLEAR REACTOR WALLS-- SPUTTERING
ARGON IONS
ATOMS
DEUTERONS
Equipment
HELIUM IONS
Molecular Beams &
Molecular)--Atomic
Electron
Ion &
N60100 --Physics (Atomic &
N70800* --Physics--Controlled Thermonuclear Research-- Thermonuclear Engineering &
NICKEL ALLOYS
Reactions
SURFACES
THERMONUCLEAR REACTORS
TRITONS THERMONUCLEAR REACTOR WALLS
ARGON IONS
ATOMS
DEUTERONS
Equipment
HELIUM IONS
Molecular Beams &
Molecular)--Atomic
Electron
Ion &
N60100 --Physics (Atomic &
N70800* --Physics--Controlled Thermonuclear Research-- Thermonuclear Engineering &
NICKEL ALLOYS
Reactions
SURFACES
THERMONUCLEAR REACTORS
TRITONS THERMONUCLEAR REACTOR WALLS