Physics – Condensed Matter – Materials Science
Scientific paper
2005-01-21
Physics
Condensed Matter
Materials Science
submitted to PRL
Scientific paper
10.1103/PhysRevLett.94.184501
We discuss a free boundary problem for two moving solid-liquid interfaces that strongly interact via the diffusion field in the liquid layer between them. This problem arises in the context of liquid film migration (LFM) during the partial melting of solid alloys. In the LFM mechanism the system chooses a more efficient kinetic path which is controlled by diffusion in the liquid film, whereas the process with only one melting front would be controlled by the very slow diffusion in the mother solid phase. The relatively weak coherency strain energy is the effective driving force for LFM. As in the classical dendritic growth problems, also in this case an exact family of steady-state solutions with two parabolic fronts and an arbitrary velocity exists if capillary effects are neglected. We develop a velocity selection theory for this problem, including anisotropic surface tension effects. The strong diffusion interaction and coherency strain effects in the solid near the melting front lead to substantial changes compared to classical dendritic growth.
Brener Efim A.
Temkin D. E.
No associations
LandOfFree
Velocity selection problem for combined motion of melting and solidification fronts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Velocity selection problem for combined motion of melting and solidification fronts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Velocity selection problem for combined motion of melting and solidification fronts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-593274