Kris's Research Notes

December 21, 2012

Thermal Grooving Simulations

Filed under: Grains, KMC, Sintering, Thermal Grooving — Kris Reyes @ 4:23 pm

In this note, we present simulations on thermal grooving for both porous and non-porous media. A bar with grains is allowed to anneal by means of grain growth and surface diffusion. In the case of porous media, this can be seen as a follow-up of the previous sintering simulations, but with a free boundary.



December 18, 2012

Sintering Simulations: Part 2

Filed under: Grains, KMC, Sintering — Kris Reyes @ 8:33 pm

Here, we present simulation results of sintering on a longer time scale than the previous simulations. Average grain size and number of grains are plotted as a function of time.


December 14, 2012

Sintering simulations: Part 1

Filed under: Grains, KMC, Sintering — Kris Reyes @ 4:13 am

In this note, we present preliminary simulations of sintering, by which we mean the evolution of granular, porous material. Grains represent contiguous regions of atoms of a given orientation. A system evolves by surface diffusion of atoms and changes of atom orientation.