Inseritng spherical grains in a tessellation

[Ava-22-neper]

Hi all,

I want to model a dual-phase material in which the second phase is spherical nodules randomly distributed in the first phase as the matrix. Do you have any ideas how I can do this? I thought of generating a tessellation for the matrix, cutting some spheres from that and then fill in the vacancies with spherical grains! I did the first two steps but have no idea how can I add spheres to it. Do you have any suggestions for that?
I attached a picture of the model I generated and the one I want. However, in this case, spheres are too big. At the final model the size of spheres is a bit smaller than the matrix grains.

[rquey]

This is not something that Neper can do right now, especially if the nodules are of the same size, or smaller than the grains.

[Ava-22-neper]

Hi Professor

Thank you very much for your answer. Yes they are generally of the same size of the grains. Can I use "diameq" for them like how we use that for dual phase materials and used 2 different sphericity?! I mean using 2 different sphericity each for one phase.