Title | Deuterium blistering in tungsten and tungsten vanadium alloys |
Publication Type | Journal Article |
Year of Publication | 2016 |
Authors | K. Arshad, Y. Yuan, L. Cheng, J. Wang, Z.J Zhou, G. De Temmerman, G.H Lu |
Journal | Fusion Engineering and Design |
Volume | 107 |
Pagination | 25-31 |
Date Published | 06/2016 |
Keywords | Blistering, Deuterium plasma, Tungsten-vanadium alloy |
Abstract | In order to evaluate D blistering behavior in W based plasma facing materials, rolled W and different grades of W-V targets were exposed to high flux of 1.2 × 1024 m−2 s−1, low energy (38 eV) D plasma at two different surface temperatures. The blistering behavior was investigated by means of scanning electron microscopy, accompanied by electron back-scattering diffraction. Highest numbers of blisters were observed on the surface of rolled tungsten. The addition of V precursor to W suppressed D blister formation. In the case of W-V alloys, comparatively submicron V-containing materials have shown high tendency but small size blisters formation than micron V-containing samples. A high density of blisters was observed near the (111) plane on the surface of both V-containing alloys. Nano-sized blisters were also observed on V enriched surface. |
DOI | 10.1016/j.fusengdes.2016.03.072 |
Division | PSI |
Department | PSI-E |
PID | 8bab1f7dc731974d8c52f57de667c458 |
Alternate Title | Fusion Eng. Des. |
Label | OA |
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