S4phasediag - stable phases based on elemental composition...

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stable phases based on elemental composition and temperature solubility limit : max concentration of solute (sugar) dissolved with solvent phase: same physical and chemical characteristic Mix 2 elements together? Single phase (isomorphous) 100% soluble, same composition thru out (FCC) Binary phase Not 100% soluble, distinct phases, solubility limit reached, diff. composition and structure Boundaries with structure microstructure Mixture of two elements Microstructure -characterized by # of phases present, their proportions, how they are distributed, influence mechanical properties Influenced by concentration of elements, heat treatment Lamellae: alternating of 2 phases: alpha, beta and redistribution of Pb and Sn by diffusion Phases in equil Free energy minimum at equilibrium (entropy) Temp vs. composition, info on phases, transformation, predict microstructures Defines mechanical properties Gibbs phase rule
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This note was uploaded on 09/25/2010 for the course MATE 210 taught by Professor Gary during the Spring '10 term at Aarhus Universitet.

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S4phasediag - stable phases based on elemental composition...

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