Question

A note on Hume-Rothery's ratio rule​

Answer 1

Answer:

                                         The Hume-Rothery rules state that two elements must be very similar to each other in order to form a solid solution, because any dissimilarities can cause separation like in the case of oil and water. The two elements must therefore meet all of the following conditions in order to mix and form a solid solution.

                                          For interstitial solid solutions, the Hume-Rothery Rules are: Solute atoms should have radius no larger than 15% of the radius of solvent atoms. The solute and solvent should have similar electronegativity. ... The greater the difference in valence between solute and solvent atoms, the lower the solubility.While developing alloys, it is desired to increase its strength by adding metals that will form a solid solution

Explanation: