solid solution
primary solid solution

This refers to the different oxidation states of the iron in one structure, not a solid solution.

They've shown many times that their policy with issues such as this is to say nothing until they've got a solid solution to put forward.

The same structure is also observed for at least some of their solid solutions.

A complete solid solution has been found between baryte and hashemite.

It's not like they have any ideas of their own and this is a solid solution.

Such a mixture can be either a solid solution, eutectic or peritectic, among others.

We hope to reach a solid and workable solution to this issue in the Council next week.

We are simply calling for a solid solution, one that does not plunge football into chaos.

"I think they should come up with a solid solution instead of threatening riders with a Sunday schedule or no service."

If we don't get a solid solution, do you want to take a chance on the ones that haven't failed, or just skip it?