Materials Science

Materials Science - Engineering Subject

Materials Science - PH3251 2nd semester Mechanical Dept | 2021 Regulation | Anna University Engineering Subject Paper

Unit I: Crystallography

1. Crystallography - Definition, Crystal Systems, Crystal Structure, Characteristics

2. Crystal Structures

3. Body-centred Cubic (BCC) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

4. Face-centred Cubic (FCC) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

5. Hexagonal close-packed (HCP) Structure - Atoms per unit cell, Coordination number, Atomic radius, Packing factor, Examples

6. Directions in Crystal

7. Planes in Crystals - Definition, Procedure for finding Miller indices, Density of Crystal

8. Linear Density and Planar Density - with Solved Example Problems | Crystallography

9. Anna University Solved Problems [lattice constant] - Crystallography | Materials Science

10. Crystal Imperfections - Definition, Classification, Point Defects and its types, example

11. Line Defects or Dislocations - Types

12. Burger's Vectors - Crystallography

13. Elastic Strain Energy - Crystallography

14. Plastic Deformation Mechanisms - Types: Slip, Twinning

15. Slip Systems in FCC & BCC Crystals

16. Polymorphism - Definition, Solved Example Problems | Crystallography

17. Phase changes or Transformations - Crystallography

18. Nucleation and Growth - Crystallography

19. Homogeneous or Self-Nucleation - Crystallography

20. Heterogeneous Nucleation - Crystallography

21. Anna University Solved Problems - Crystallography | Materials Science

22. 2 Marks Question & Answers - Crystallography | Materials Science

23. Additional 2 Marks Question & Answers - Crystallography | Materials Science

24. 16 Marks Questions, Assignment Problems - Crystallography | Materials Science

Unit II(a): Electrical Properties of Materials

1. Electrical Properties of Materials - Introduction

2. Classical Free Electron (CFE) Theory of Metals

3. Expression for Electrical Conductivity of a Metal (Derivation) - Based on Drude and Lorentz classical free electron theory

4. Expression for Thermal Conductivity of a Metal (Derivation)

5. Anna University Solved Problems [Lorentz number]

6. Quantum Free Electron (GFE) Theory - Electrical and Magnetic Properties of Materials - Materials Science

7. Degenerate States - Electrical Properties of Materials

8. Tunneling - Electrical Properties of Materials

9. Fermi-Dirac Statistics - Definition, Formula

10. Anna University Solved Problems [Fermi distribution function]

11. Density of Energy States - Definition, Formula, Derivation, Expression for Fermi energy

12. Electron in Periodic Potential

13. Energy Bands in Solids - Definition, Concept of band, Classification

14. Tight Binding Approximation - Electrical Properties of Materials

15. Effective Mass of Electron and Hole

16. Concept of Hole: (or) Effective or Negative Mass of Electron

17. Anna University Solved Problems - Electrical Properties of Materials | Materials Science

18. 2 Marks Question & Answers - Electrical Properties of Materials | Materials Science

19. Additional 2 Marks Question & Answers - Electrical Properties of Materials | Materials Science

20. 16 Marks Questions, Assignment Problems - Electrical Properties of Materials | Materials Science

Unit II(b): Magnetic Properties of Materials

1. Magnetic Properties of Materials - Introduction

2. Classification of Magnetic Materials

3. Diamagnetic Effect - Magnetic Properties of Materials

4. Paramagnetic Effect - Magnetic Properties of Materials

5. Paramagnetism in the Conduction Electrons in Metals

6. Ferromagnetic Effect - Magnetic Properties of Materials

7. Exchange Interaction and Ferromagnetism - Magnetic Properties of Materials

8. Quantum Interference Devices: SQUID, GMR - Definition, Operation Working Principle, Application

9. Giant Magneto Resistance (GMR) Devices Sensor Spin Valve

10. Anna University Solved Problems - Magnetic Properties of Materials | Materials Science

11. 2 Marks Question & Answers - Magnetic Properties of Materials | Materials Science

12. Anna University Solved Problems - Magnetic Properties of Materials | Materials Science

13. 16 Marks Questions - Magnetic Properties of Materials | Materials Science

Unit III: Semiconductors and Transport Physics

1. Semiconductors based on Electrical resistance - Definition, General properties, Classification

2. Direct and Indirect Band gap Semiconductors

3. (i) Intrinsic Semiconductors - Energy band Diagram, Charge carriers

4. Energy Band Diagram for intrinsic semiconductor - Charge carriers

5. Carrier Concentration in Intrinsic Semiconductors - Definition, Density of Electrons, Limitations

6. (ii) Extrinsic or Impure Semiconductors - Doping, Advantages, Types, Covalent bond, Energy band

7. Carrier Concentration in n-Type Semiconductors [Derivation]

8. Concentration of holes in valence band of p-type semiconductors [derivation]

9. Variation of Carrier Concentration with Temperature and Impurity - Semiconductor

10. Carrier Transport in Semiconductor Mobility

11. Mobility - Definition, Formula | Semiconductor

12. Drift and Diffusion - Definition, formula, derivation | Semiconductor

13. Hall effect - Statement, Definition, Hall coefficient, Applications

14. Hall Devices - Definition, Types

15. Schottky Diode - Definition, Symbol, Working Principle, Energy band diagram, VI Characteristics, Advantages, Applications

16. Ohmic Contacts - Definition, Working Principle, VI Characteristics, Advantages, Applications

17. Anna University Solved Problems - Semiconductors and Transport Physics | Materials Science

18. 2 Marks Question & Answers - Semiconductors and Transport Physics | Materials Science

19. Additional 2 Marks Question & Answers - Semiconductors and Transport Physics | Materials Science

20. 16 Marks Questions, Assignment Problems - Semiconductors and Transport Physics | Materials Science

Unit IV: Optical Properties of Materials

1. Optical Properties of Materials - Introduction

2. Classification of Optical Materials

3. Optical Processes in Semiconductors

4. Absorption and Emission of Light in Semiconductors

5. Charge Injection and Radiative Recombination - Optical Properties of Materials

6. Carrier Generation and Recombination Processes - Optical Properties of Materials

7. Optical Absorption, Loss and Gain - Optical Properties of Materials

8. Optical Processes in Quantum Wells

9. Optoelectronic Devices

10. Light Detectors - Definition, List with Construction, Working Principle

11. Solar Cell - Definition, Construction, Working Principle, VI Characteristics, Advantages, Disadvantages, Applications, Uses

12. Light Emitting Diode (LED) - Construction, Working Principle, VI Characteristics, Advantages, Disadvantages, Applications, Uses

13. Laser Diodes - Definition, Principle, Construction, Working, Characteristics, Advantages, Disadvantages, Applications

14. Organic Semiconductors: Optical Processes and Devices

15. Excitonic State & Organic Light Emitting Diode (OLED) - Construction, Working Principle, VI Characteristics, Advantages, Drawbacks, Applications, Uses

16. Electro-Optic Effects - Optical Properties of Materials

17. Non Linear Optics

18. Different electro optic modulators

19. Optical (photonic) Switching

20. Plasmonics - Principle, Surface Plasmon Resonance, Uses

21. 2 Marks Question & Answers - Optical Properties of Materials | Materials Science

22. 16 Marks Questions - Optical Properties of Materials | Materials Science

Unit V: Nanoelectronic Devices

1. Nanoelectronic Devices - Introduction

2. Quantum Confinement - Definition | Nanoelectronic Devices

3. Quantum structures (quantum wells, wires and dots) - Definition, Explanation, 3 types and its Construction, Use

4. Zener - bloch oscillations - Definition, Derivation

5. Resonant Tunneling - Definition, Explanation, Resonant Tunneling Diode

6. Single Electron Phenomena - Definition, Formula, Tunneling, Condition

7. Single Electron Transistor (SET) - Definition, Construction, Working Principle, Advantages, Limitations, Applications

8. Mesoscopic Structure - Definition, Characteristic lengths

9. Quantum Interference Effect - Superposition, Applications, QUIT

10. Spintronics - Definition, Principle, Spintronics Devices

11. Carbon nanotubes (CNT) - Structures, Types, Classification

12. Properties of CNTs (Carbon NanoTubes)

13. Applications of Carbon Nanotubes (CNTs)

14. Semiconductor for Photonic Structures - Types

15. 1d photonic crystals - Applications

16. 2D photonic crystals

17. 3D photonic crystals

18. 2 Marks Question & Answers - Nanoelectronic Devices | Materials Science

19. 16 Marks Questions - Nanoelectronic Devices | Materials Science