Post on 19-Jan-2016
description
Phase Equilibria and Phase Diagrams
(Phase Equilibria of Materials)
재료 상평형
(Fall Semester, 2013)
Intro
• phase equilibria thermodynamics– equil thermo: materials take on and the
in which states would ideally be assumed– thermo: kinetics, rate of evolution toward
equil– one of the important subfields of thermo theory
of
• since this course is theoretical, best to begin with a brief outline of what a physical theory is
• physical theory: attempting to understand and predict by modeling
• it replaces the world:– useful ↔ useless (O)– right ↔ wrong (X)
• theory → common underlying structure
① 정의 (definitions or vocabulary) ② 가정 (assumptions or postulates): laws,
axioms, assumptions ③ 수학 (math): mathematical consequences
of postulates, used to explain and predict the detailed behavior of the model
④ intuitive extrapolations: the final step of a theory, interpreting and explaining the behavior of systems outside the strict range of the model
→ a familiar example is classical ‘ ’
• thermo → science of heat, a quantity defined by laws of thermo, not a
thing
• (classical) thermo
• thermo laws 0th: defining empirical temp, eq. of state 1st: internal energy, eq. of state 2nd: entropy, absolute temp, eq. of
state 3rd: entropy
chemistry
netismelectromag
mechanics
complement