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NPTEL

Phase Diagrams in Single Component and Binary Systems

NPTEL via Swayam

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Overview

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ABOUT THE COURSE:Phase diagram is the basis for understanding the behavior of materials under equilibrium. It has its importance in deciding the phase evolution with the variation of pressure, temperature and composition. Moreover, it helps in understanding the processing of the materials, mainly heat treatment. For material development as well as processing, one must have good knowledge in materials phase diagram.INTENDED AUDIENCE: Metallurgy, Materials Science, Ceramics, Chemical and Mechanical Engg.PREREQUISITES: Metallurgical Thermodynamics and Phase EquilibriaINDUSTRY SUPPORT: Any Industry dealing with alloy development

Syllabus

Week 1:Introduction:
  • History and Importance of phase diagram
Week 2:Thermodynamic formulation for single component phase diagram
  • Equilibrium concept – thermodynamic state
  • Free energy concept
  • Free energy variation in single component system

Week 3:Phase diagram in single component system
  • Single component phase diagram in water and CO2

Week 4:Phase diagram in single component system
  • Single component phase diagram in water and CO2

Week 5:Solution thermodynamics
  • Concept of idea solution and real solution
  • Formulation of ideal solution and Chemical potential and equilibrium concept in solution

Week 6:Solution thermodynamics
  • Concept of idea solution and real solution
  • Raoultian and Henrian solution

Week 7:Solution thermodynamics
  • Formulation of ideal solution and Chemical potential and equilibrium concept

Week 8:Solution thermodynamics and phase diagram in ideal binary solution
  • Free energy composition diagram
  • Evolution of isomorphous phase diagram

Week 9:Solution thermodynamics and quasichemical approach in binary solution
  • Regular solution and quasichemical approach
  • Free energy composition diagram in regular solution

Week 10:Phase diagrams in regular binary system
  • Phase diagrams for different conditions of ΔHmix, ΔSmix and ΔGmix
  • Evolution of deep eutectic and congruent melting point
  • Phase separation

Week 11:Examples of phase diagrams in binary system
  • Eutectic
  • Eutectoid
  • Peritectic
Week 12:Examples of phase diagrams in binary system
  • Derivation
  • Application

Taught by

Prof. Kallol Mondal

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