Alloy is confusing. Why would Ferrosilicon have one molecular weight (\(28.0855\,g\,mol^{-1}\)) value but various density values (\(7.87\,\sim\,3.44\,g\,mol^{-1}\)) each for a different silicon (\(Si\)) content?
Why would the alloy have a molecular formula?
If iron also forms an alloy with carbon, maybe annealing carbon alone (ie \(Z=6,\,m_a=12.0107\,g\,mol^{-1}\)) in the mixture of density that varies with the percentage content of carbon, will form a new "diamond-iron" solid.
In the case above, we would use instead \(SiO_2\) and iron to obtain a "quartz-iron" solid.
What are the values of \(T_{boom}\)s and \(T_{p}\)s?
Why stop there; subject the solids to annealing temperatures with the appropriate additives and make steels; "diamond-steel" and "quartz steel".
Data crunched...