Initial experiments with liquid target materials in PSI-2 and TEXTOR

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Wetting 950 °C 10 -6 mbar Wetting - contact angle < 90° Adhesion > Cohesion Mo/Sn “Clean” metal surfaces are normaly wettable with liquid metals BUT they nearly always have oxide layers which reduce the wettability of the surface! No Wetting - contact angle >90° 990 °C 10 -6 mbar W/Sn 1mbar H 2 950°C W/Sn Adhesion < Cohesion September 9th, 2013 B. Unterberg | Institut für Energie- und Klimaforschung – Plasmaphysik, Forschungszentrum Jülich Nr. 6
Overview of wetting characteristics Contact angle September 9th, 2013 B. Unterberg | Institut für Energie- und Klimaforschung – Plasmaphysik, Forschungszentrum Jülich Nr. 7
Page 1 and 2: Member of the Helmholtz Association
Page 3 and 4: Optimization of temperature window
Page 5: Material compatibility of tin with
Page 9 and 10: Target holder in PSI-2 September 9t
Page 11 and 12: Exposure Infra-red visible IR-Camer
Page 13 and 14: Material Cuts September 9th, 2013 B
Page 15 and 16: Sn mass loss in during exposure §
Page 17 and 18: Setup Tungsten Mesh filed with Tin
Page 19 and 20: Exposure Before September 9th, 2013
Page 21 and 22: Wetting Loss After September 9th, 2
Page 23 and 24: 3 frames #119916 Strong droplet mis
Page 25 and 26: Droplets September 9th, 2013 B. Unt
Page 27 and 28: Mass Loss in TEXTOR Droplets sizes

Initial experiments with liquid target materials in PSI-2 and TEXTOR

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