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Reactive Wetting Of Metallic/Ceramic (Al/Α-Al2 O3 ) Systems: A Parallel Moleculardynamics Simulation Study, Gürcan Aral
Reactive Wetting Of Metallic/Ceramic (Al/Α-Al2 O3 ) Systems: A Parallel Moleculardynamics Simulation Study, Gürcan Aral
Turkish Journal of Physics
The reactive wetting process of a flat solid alumina (α-Al2 O3) ceramic surface by metallic aluminum (Al) nanodroplets with different shapes (spherical, cylindrical, and layer) is studied using parallel molecular dynamics (MD) simulations based on a variable charge MD method, with focuses on heat transfer, mass transfer, and the structure of the reactive region at the Al/α-Al2 O3 interface. We find that the diffusion of oxygen (O) atoms from the substrate into the droplet leads to the formation of a continuous layer of reaction product at the interface. The diffusion length of oxygen atoms into the spherical Al droplet is …