Find phase diagrams from cu-ni, cu-zn, cu-sn alloys and the water-salt system. for each alloy/system, indicate phases present over a range of temperatures and composition. a. are these phases solid solutions, precipitates or liquid solutions? b. if solid solutions, are they interstitial or substitutional solid solutions? c. if precipitates, are they intermetallic particles or ceramic particles? d. what crystal lattice do the solid phases have? e. is the melting temperature of water-salt a function of salt content? f. if yes, how does the melting temperature change with composition? does it make sense to use salt to melt snow? g. for each alloy, indicate the composition for minimum melting temperature