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Subject Code 15EE552 IA Marks 20
Number of Lecture Hours/Week 03
Exam Hours 03Total Number of Lecture Hours 40
Exam Marks 80
Credits – 03

Course objectives:
  •  To impart the knowledge of conducting, dielectric, insulating and magnetic materials and their applications.
  •  To impart the knowledge of superconducting materials and their applications
  •   To impart the knowledge of plastics and materials for Opto - Electronic devices. 

Introduction to Electrical and Electronic Materials: Importance of materials, Classification of electrical and electronic materials, Scope of electrical and electronic materials, Requirement of Engineering materials, Classification of solids on the basis of energy gap, Products – working principle and materials, Types of engineering materials, Levels of material structure. Spintronics and Spintronic materials, Ferromagnetic semiconductors, Left handed materials.
Conductors: Conductor materials, Factors affecting conductivity, Thermal conductivity, Heating effect of current, Thermoelectric effect, Seebeck effect, Thomson effect, Wiedemann – Franz law and Lorentz relation, Problems .∎ 08
Revised Bloom’s Taxonomy Level L1 – Remembering, L2 – Understanding.

Conductive Mat erials and Applications: Introduction, Types of conducting materials, Low resistivity materi als, High resistivity materials, Contact materials, Fusible materials, Filament materials, Carbon  as filamentary and brush material, Material for conductors, cables, wires, solder, sheathing and sea ling.
Dielectrics: Intro duction to dielectric materials, classification of dielectric materials, Dielectric constant, Dielectr ic strength and Dielectric loss. Polarization, Mechanisms of polarization, Comparison of di fferent polarization process, Factors affecting polarization, Spontaneous polarization, Beh aviour of polarization under impulse and frequency switching.∎ 08
Revised Bloom’s Taxonomy Level L1 – Remembering, L2 – Understanding.

Insulating Mate rials: Insulating materials and applications – Ceramic, Mica, Porcelain, Glass, Micanite and Gla ss bonded mica. Polymeric materials – Bakelite, Polyethylene. Natural and synthetic rubber. Paper. Choice of solid insulating material for different applications, Liquid insulating materi als – Requirements, Transformer oil, Bubble theory, Aging of mineral insulating oils. Gaseous ins ulating Materials – Air, Nitrogen, Vacuum.
Magnetic Mater ials: Origin of permanent magnetic dipole, Magnetic terminology, Relation between relative permeabi lity and magnetic susceptibility. Classification of magnetic materials, Diamagnetic, Paramagnetism, Ferromagnetism, Ant ferromagnetism and the corresponding materials.
Ferrimagnetism a nd ferrites – properties and applications, Soft and hard ferrites. Curie temperature, Laws of magneti c materials. Magnetization curve, Initial and maximum permeability. Hysteresis loop and loss, Eddy cu rrent loss. ∎ 08
Revised Bloom’s Taxonomy Level L1 – Remembering, L2 – Understanding.

Magnetic Materials (continued):Types of magnetic materials, Soft and hard magnetic materials, High energy magnetic materials, magnetostriction.
Superconductive Materials:Concept of superconductors, Meaning of phenomenon of
superconductivity, Properties of superconductors, Types of superconductors, Critical magnetic field 08

Superconductive Materials (continued):and critical temperature, Effects of Isotopic mass on critical temperature, Silsbee rule, Depth of penetration and coherence length. Ideal and Hard superconductors, Mechanism of superconduction, London’s theory for Type I superconductors, GLAG theory for Type I superconductors, BCS theory. Applications and limitations∎  
Revised Bloom’s Taxonomy Level L1 – Remembering, L2 – Understanding.

Plastics: Introduction, Thermoplastics, Rubbers, Thermosets, DC and AC properties, Mechanical properties and processing of plastic.
Materials for Opto – Electronic Devices: Introduction, Optical phenomena, Reflection, Refraction, Transmittivity, Scattering, Optical absorption, Optical properties of non-metals, Optical properties of metals, Optical properties of semiconductors, Optical properties of insulators. Luminescence, Opto –
Electronic devices, Photoconductivity, Photoconductive cell.∎ 08
Revised Bloom’s Taxonomy Level L1 – Remembering, L2 – Understanding.
Graduate Attributes (As per NBA) 
Engineering Knowledge

Question paper pattern:
  • The question paper will have ten questions.
  • Each full question is for 16 marks.
  • There will be 2full questions (with a maximum of four sub questions in one full question) from each module.
  •  Each full question with sub questions will cover the contents under a module.
  •   Students will have to answer 5 full questions, selecting one full question from each module.∎

1 Advanced Electrical and Electronics Materials; Processes and Applications K.M. Gupta Nishu Gupta Wiley First Edition, 2015

Refer ence Books
1 Electronic Engineering Materials R.K. Shukla Archana Singh McGraw Hill 2012
2 Electrical Properties of Materials L Solymar et al Oxford 9th Edition, 2014
3 Electrical Engineering Materials A.J. Dekker Pearson 2016
4 Principle of Electronic Materials and Devices S.O. Kasap McGraw Hill 3rd Edition
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