« Last post by Rembrandt on Today at 06:32:12 AM »
Great answer, thanks. The quick answer should be yes then
If you look at the phase diagram - you need a temperature of almost 1200°C to melt your mixture and silicon will crystallize when cooling, and the Li12Si7 phase will solidify at 648°C regardless of the cooling speed (unless the phase diagram for atmospheric pressure is not true). Based on this phase diagram, it is difficult to predict what will happen under HTHP conditions. Zeolite o-Si24 was probably obtained from Na-Si alloy.
Yes. A phase change doesn't involve breaking covalent bonds, only intermolecular interactions. If covalent bonds are broken, it's a chemical reaction. If you need to explain something about a boiling point, you have to think about factors that influence the strength of intermolecular forces.