Subject Code & Name: CH25303 – Material Technology
Regulation: R-2025
Semester: III (Third Semester)
Branch: B.Tech. Chemical Engineering (Chem)
Credits / L-T-P: 3 Credits | L-T-P: 3-0-0
Course Objectives
- To provide comprehensive knowledge on structure, properties, characterization and selection of engineering materials for various industrial and engineering applications.
Full Unit-wise Syllabus
Unit I – Crystalline Solids
Crystal structures and crystal system, reciprocal lattice, miller indices, closed packed structures, determination of crystal structures. Imperfection in Solid - Point imperfections and their equilibrium concentration, Edge and screw dislocations; burgers vector and the dislocations; burgers vector and the dislocation leap, stress fields and energies of dislocations, dislocations forces, dislocation sources; Multiplication of dislocations.
Activities: Analyze crystal structures and crystal defects using lattice models, identify different imperfections in solids and evaluate their influence on material properties, solve problems related to Miller indices and dislocation mechanisms.
Unit II – Mechanical Properties
The elastic properties, model of elastic behaviour, plastic deformation tensile stress-strain curve, shear strength of perfect and real crystals, mechanical failure, fatigue and fracture, creeps: mechanism of creep, characterization of creep curves. Hardness tests, Compression test, Tension test on different types of materials.
Activities: Interpret stress-strain behavior of materials, perform analysis of tensile, compression and hardness test data, evaluate mechanisms of creep, fatigue and fracture in engineering materials.
Unit III – Electrical Properties
Classical and quantum theory of free electronics; relaxation time, collision time and mean free path, density of energy states and Fermi energy, electron motion under periodic potential, origin of energy bands in solids, classification of material on the basis of band gap, effective mass, intrinsic and extrinsic semi-conductors, hall effect and its applications. Measurement of capacitance of materials, Characterization of semiconductor material by FESEM and DLS. Band gap estimation from the band edge.
Activities: Analyze electronic band structures and semiconductor properties from literature, interpret Hall effect measurements and band gap estimation, evaluate characterization techniques such as FESEM and DLS for semiconductor materials.
Unit IV – Dielectric Properties
Mechanism of polarization concept of polarizability and internal fields, dielectrics in alternating field; frequency dependence of polarizability. Measurement of volume and surface resistivity- polarisation index of dielectric materials.
Activities: Evaluate dielectric behavior under alternating electric fields, analyze polarization mechanisms and resistivity measurements, compare dielectric properties of engineering insulating materials.
Unit V – Magnetic Properties and Super Conductivity
Magnetic moments and its origin, dia-and para-magnetism, ferro and ferri-magnetism, soft and hard magnetic materials, ferrites, application of magnetic materials. Super conductivity - Properties of superconductors, London equations, Josephson effect, quantum explanation of super conductivity, flux quantization, application of superconductors. Conductivity measurements of materials. Fabrication and capacitance measurement of super capacitor.
Activities: Differentiate magnetic materials based on their properties and applications, analyze superconducting phenomena and flux quantization, interpret conductivity and capacitance measurements of advanced materials and super capacitors.
Course Outcomes (COs)
- CO1: Understand crystal structures, lattice systems crystal imperfections, and their influence on material properties.
- CO2: Apply principles of material behavior to determine mechanical properties, strength, and failure characteristics under different loading conditions.
- CO3: Analyze electronic energy states, semiconductor behavior, and band gap characteristics of engineering materials.
- CO4: Evaluate the suitability of dielectric and magnetic materials for industrial and engineering applications.
- CO5: Design material selection strategies using superconducting, conducting, dielectric, and magnetic materials for advanced technological applications.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Material characterization and problem-solving exercises (20%), Quiz / MCQs (20%), Internal Examinations (40%)
Source: Official Anna University – B.Tech. Chemical Engineering R-2025 Curriculum
Last Updated: September 2026
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