Course Details
Subject {L-T-P / C} : CR2102 : Structure and Phase equilibrium in ceramics { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Swadesh Kumar Pratihar
Syllabus
MODULE 1
Basic Crystallography:
Bonding and structure of materials, Crystal Structure and Crystal Geometry: Space lattice Unit Cells Crystal systems Bravis lattices Miller indices Volume, planar and linear density unit cell calculations Polymorphism Crystal structure analysis (8hrs)
MODULE 2
Crystal structure of oxide systems:
Some Real Structures: Rock Salt, Zinc Blende, Antifluorite, Rutile, Perovskite, Spinels, Wurtzite etc. (4 hrs)
MODULE 3
Crystal imperfections
Crystalline Imperfections, types and notations, Solid solutions, defects defect chemistry and dislocations. Vitreous state, glasses and structural models (8 hrs)
MODULE 4
Condensed phase rule and single component system:
Silica, Zirconia and Carbon etc. (4 hrs)
MODULE 5
Two component systems:
Lever rule. Free energy-composition diagrams, phase stability, solid solutions, Eutectic and Eutectoid, Peritectic reaction, congruently and incongruently melting compound. Some important binary ceramic systems SiO2-Al2O3, MgO-Al2O3, CaO-SiO2, CaO-ZrO2, MgO-SiO2, BaO-TiO2, CaO-Al2O3, CaO-MgO (8 hrs)
MODULE 6
Ternary System:
Representation of composition on triangle, proof of the basis, Temperature, Solid models, Iso-thermal Sections, Base projection method. Ternary systems with binary and ternary Eutectic, Peritectic, congruently and incongruently melting compounds. Some important ternary ceramic systems: CaO-SiO2-Al2O3, MgO-SiO2-Al2O3, CaO-MgO-SiO2. (8 hrs)
Course Objectives
- To under stand Basic crystallography
- To understand the structure of ceramic material and calculate different crystallographic parameters.
- To understand and calculate different defects and defect-related parameters
- To impart fundamental knowledge on Phase diagrams in ceramics and their quantitative and qualitative analysis
Course Outcomes
CO1: Understand the crystal structure bond energy-related properties of ceramics <br />CO2: Understand crystal structure-related properties of materials <br />CO3: Understand writing Defects equation on substitution following defect chemistry and properties governed by defects <br />CO4: Draw and Interpret ceramic phase diagram. Understand qualitative and quantitative analysis of the phase diagram
Essential Reading
- W. D. Kingery, H. K. Bowen and D. R. Uhlmann, Introduction to Ceramics, John Wiley & Sons
- F. A. Hummel, , Introduction to Phase Equilibrium in Ceramic Systems, CRC Press
Supplementary Reading
- L.V. Azaroff, Introduction to Solids, Tata McGraw Hill Publishing Co. Ltd
- C. Kittel, Introduction to Solid State Physics, John Wiley & Sons Pvt. Ltd