| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering III
|
| Presentation Title |
Enhancement of Liquid Metal Wetting by Patterning Particles on Oxide Surfaces |
| Author(s) |
Jiyun Park, Jason D. Nicholas, Yue Qi |
| On-Site Speaker (Planned) |
Jiyun Park |
| Abstract Scope |
Improvement of wettability of oxides by liquid metals is important to have a well-bonded interface in many fields, but many researchers have focused on changing either chemical additives or surface roughness. This work shows how both topographically and chemically patterned surfaces (i.e., nickel particle patterned oxide surface) affect the wetting and spreading of liquid silver (Ag) on oxide surfaces. Molecular dynamics (MD) simulations, using a force field fitted to density functional theory calculations, showed that the hexagonally patterned Ni particles on yttria-stabilized-zirconia surface enhanced the wetting area of Ag by 224% compared to the bare surface. For generalization, an analytical model was derived for describing the maximum enhancement in wetting area and was verified with MD simulations. Both the analytical model and MD results suggested the role of Ni patterns in wetting enhancement becomes more significant as the intrinsic wettability of a substrate gets worse. |
| Proceedings Inclusion? |
Planned: |