publication . Other literature type . 2016

Temperature Dependent Surface Modification of Tungsten Exposed to High-Flux Low-Energy Helium Ion Irradiation

Damico, Antony Q; Tripathi, Jitendra K; Novakowski, Theodore J; Miloshevsky, Gennady; Hassanein, Ahmed;
Open Access
  • Published: 04 Aug 2016
  • Publisher: Purdue University
  • Country: United States
Abstract
Nuclear fusion is a great potential energy source that can provide a relatively safe and clean limitless supply of energy using hydrogen isotopes as fuel material. ITER (international thermonuclear experimental reactor) is the world first fusion reactor currently being built in France. Tungsten (W) is a prime candidate material as plasma facing component (PFC) due to its excellent mechanical properties, high melting point, and low erosion rate. However, W undergoes a severe surface morphology change when exposed to helium ion (He+) bombardment under fusion conditions. It forms nanoscopic fiber-form structures, i.e., fuzz on the surface. Fuzz is brittle and can e...
Subjects
free text keywords: Nuclear Fusion, Ion Irradiation, Tungsten, Scanning Electron Microscopy, X-Ray Photoelectron Spectroscopy, Nanoscience and Nanotechnology, Nuclear Engineering
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Other literature type . 2016
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