De-wetting of barium on W(100) and (110) surfaces observed using thermionic emission microscopy
| Autor: | Watakka Sitaputra, Jerzy T. Sadowski, Michael V. Mroz, Martin E. Kordesch |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Inorganic chemistry Analytical chemistry chemistry.chemical_element Thermionic emission Barium 02 engineering and technology Tungsten 021001 nanoscience & nanotechnology 01 natural sciences 010305 fluids & plasmas Metal Contact angle Surface tension Adsorption chemistry visual_art 0103 physical sciences visual_art.visual_art_medium 0210 nano-technology Layer (electronics) |
| Zdroj: | 2017 30th International Vacuum Nanoelectronics Conference (IVNC). |
| DOI: | 10.1109/ivnc.2017.8051637 |
| Popis: | Adsorption of barium metal on tungsten (100) and (110) surfaces at 300 K results in a condensed uniform film. Heating the barium metal layer to temperatures of 800–900 K causes the film to convert into spherical metal droplets. The droplets do not wet the W(100) or W(110) surfaces. The measured contact angle between the Ba droplets and the surface is greater than 150 degrees. |
| Databáze: | OpenAIRE |
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