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Course11310600170 lectures

Phase Diagrams and Phase Transformations Ceramic Systems

Prof. Mohammad Imteyaz Ahmad and Prof. Pavan Pujar · IIT (BHU) Varanasi

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About

Knowledge of phase diagrams is important for several domains in Materials science and engineering. This course will familiarize students with the fundamentals of phase stability required for design and processing of materials for applications such as refractories, glasses and multicomponent materials for functional and engineering applications. This course is intended to equip the students with the tools to analyze the unary, binary and ternary phase diagrams. After the successful completion of the course, students will be capable of understanding the interaction between the components and predicting their solidification behavior and microstructure.

Intended audience: Students of Materials Science and Engineering, Metallurgical Engineering, Ceramic Engineering, Mechanical Engineering, Chemical Engineering

Prerequisites: A fundamental understanding of materials thermodynamics and basic terminologies in materials science is essential.

Lectures

Week 1

  1. Introduction & Basic Terminology YouTube
  2. Criteria for Equilibrium & Clapeyron Equation YouTube
  3. Nature of Phase Boundaries YouTube
  4. One component Unary Phase Diagrams YouTube
  5. Introduction to Multicomponent Phase Diagrams YouTube
  6. Gibb's Phase Rule & Its Interpretation YouTube

Week 2

  1. Two Component Binary Phase Diagrams YouTube
  2. Lever Rule & Related Concepts YouTube
  3. Equilibrium Cooling & Microstructure Evolution YouTube
  4. Deviation from Ideal Isomorphous Behavior YouTube
  5. Invariant Reactions - Deviation from Ideal Isomorphous Systems_1 YouTube
  6. Invariant Reactions - Eutectic, Peritectic Phase Diagrams YouTube

Week 3

  1. Framework for constructing Complex Binary Phase Diagrams YouTube
  2. Examples of Constructing Complex Binary Phase Diagrams - Part 1 YouTube
  3. Liquid Miscibility & Related Invariant Reactions YouTube
  4. Polymorphism in Binary Phase Diagams YouTube
  5. Examples of Constructing Complex Binary Phase Diagrams - Part 2 YouTube
  6. Rules for the Construction of Complex Phase Diagrams & Case Studies YouTube

Week 4

  1. Three Component Ternary Phase Diagrams YouTube
  2. Locating Ternary Composition YouTube
  3. Interpretation & Quantification of Phases in Ternary Systems YouTube
  4. Liquidus Projection and Solidification Path YouTube
  5. Liquidus Projections in Simple Ternary Eutectics YouTube
  6. Primary Phase Fields & Solidification Paths in Simple Ternary Eutectics YouTube

Week 5

  1. Tutorial on Estimating Solidification Path YouTube
  2. Compounds in Ternary Systems YouTube
  3. Phase Compatibility Relations in the Ternary Composition Space YouTube
  4. Thermodynamic Basis of Compatibility Networks YouTube
  5. Correlating Solidifcation Paths & Compatibility in Ternary Systems YouTube
  6. Tutorial on Constructing Cotectic Networks & Applying the Alkemade Theorem YouTube

Week 6

  1. Correlating Solidification Paths & Phase Compatibility in Ternary Systems - Part 2 YouTube
  2. Boundary - Line Crystallization & Resorption Paths In Ternary Systems YouTube
  3. Correlating Solidification Paths & Phase compatibility in Ternary Systems Part - 3 YouTube
  4. Correlating Solidification Paths & Phase Compatibility in Ternary Systems - 4 YouTube
  5. Tutorial on Correlating Solidification Paths & Phase Compatibility in Ternary Systems YouTube
  6. Analysis of Real Systems YouTube
  7. Introduction to Quaternary Phase Diagrams YouTube

Week 7

  1. Phase Transformation in Ceramic Systems - Introduction YouTube
  2. Diffusion YouTube
  3. Atomistic View of Diffusion YouTube
  4. Role of Defects in Diffusion in Ionic Crystal YouTube
  5. Interfaces YouTube
  6. Influence of Interfaces on Equilibrium YouTube
  7. Tutorial YouTube

Week 8

  1. Solidification of Congruently Melting Compounds - 1 YouTube
  2. Solidification of Congruently Melting Compounds - 2 YouTube
  3. Nucleation Rates YouTube
  4. Heat Conduction & Solidification Front Stability YouTube
  5. Tutorial - 2 YouTube
  6. Solidification of Solid Solutions - 1 YouTube
  7. Solidification of Solid Solutions - 2 YouTube

Week 9

  1. Binary Eutectic Solidification YouTube
  2. Peritectic Solidification YouTube
  3. Nucleation in Solid State YouTube
  4. Growth in Solid State YouTube
  5. Tutorial - 3 YouTube

Week 10

  1. Diffusion Controlled Growth YouTube
  2. Precipitate or Particle Coarsening YouTube
  3. Time - Temperature - Transformation Diagrams YouTube
  4. Kinetics of Interface Controlled Transformation YouTube
  5. Kinetics of Diffusion - Controlled Transformation YouTube
  6. Tutorial - 4 YouTube

Week 11

  1. Intrinsic Stability a& Phase Separation Within Miscibility Gap YouTube
  2. Spinodal Decomposition YouTube
  3. Martensitic Transformation YouTube
  4. Glass Transition YouTube
  5. Tutorial 5 YouTube

Week 12

  1. Crystallization in Glass Ceramics YouTube
  2. Ordering Transformation YouTube
  3. Particle Size Evolution in Gas Phase YouTube

Syllabus and materials

At NPTEL, as the course publishes them.

Credits and licence

Institution
IIT (BHU) Varanasi
Department
Metallurgy and Material Science
Taught by
Prof. Mohammad Imteyaz Ahmad, Prof. Pavan Pujar
Level
Undergraduate
Language
English
Subjects
Engineering
Source
NPTEL
Licence
CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
Attribution
NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Madras.
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