Initial experiments with liquid target materials in PSI-2 and TEXTOR
Initial experiments with liquid target materials in PSI-2 and TEXTOR
Initial experiments with liquid target materials in PSI-2 and TEXTOR
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Wett<strong>in</strong>g<br />
950 °C<br />
10 -6 mbar<br />
Wett<strong>in</strong>g - contact angle < 90°<br />
Adhesion > Cohesion<br />
Mo/Sn<br />
“Clean” metal surfaces are<br />
normaly wettable <strong>with</strong> <strong>liquid</strong><br />
metals<br />
BUT they nearly always have<br />
oxide layers which reduce the<br />
wettability of the surface!<br />
No Wett<strong>in</strong>g - contact angle >90°<br />
990 °C<br />
10 -6 mbar<br />
W/Sn<br />
1mbar H 2<br />
950°C<br />
W/Sn<br />
Adhesion < Cohesion<br />
September 9th, 2013<br />
B. Unterberg | Institut für Energie- und Klimaforschung – Plasmaphysik, Forschungszentrum Jülich Nr. 6
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