Temperature-dependent mechanisms of lithium erosion from lithium-based liquid metals under low-energy bombardment
Abstract
Erosion from liquids under low-energy, light-particle bombardment has been studied at the Ion-surface Interaction Experiment (IIAX) facility at the University of Illinois^1. A variety of liquids are studied including lithium, tin-lithium and tin. Quartz crystal microbalance technology is used to measure lithium erosion including evaporation and sputtering under a variety of surface conditions, temperatures and incident particle energies. In addition to these measurements, this work includes self-consistent modeling done with VFTRIM-3D ^2 and TRVMC-95. Results indicate that the near-surface deposited energy density and temperature-dependent surface binding energy are important mechanisms in understanding the erosion behavior of liquid metals as the sample temperature and incident particle energy is varied. The study includes measurements with H^+, D^+, He^+, Ne^+, Ar^+ and Li^+ bombardment at energies between 0.1-1.0 keV and 45-degree incidence. ^1J.P. Allain, D.N. Ruzic, M.R. Hendricks, J. Nucl. Mater. 290-293 (2001) 180. ^2D.N. Ruzic, Nuclear Instrum. Methods B 47 (1990) 118.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2002
- Bibcode:
- 2002APS..DPPGP1145A