PH3258 - PHYSICS OF MATERIALS (Syllabus) 2021-regulation Anna University

PH3258 - PHYSICS OF MATERIALS (Syllabus) 2021-regulation Anna University

PH3258	PHYSICS OF MATERIALS	LPTC

3003

OBJECTIVE:

• To make the students to understand the basics of phase diagrams and various materials preparation techniques
• To equip the students to have a knowledge on different types of electron theory, basics of quantum mechanics and about superconductors
• To introduce the physics of semiconducting materials and applications of semiconductors in device fabrication
• To familiarize the students with the theory and applications of magnetic and dielectric materials
• To provide the students a sound platform towards learning about advanced materials and their applications.

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UNIT I	PREPARATION OF MATERIALS	9

Phases - phase rule – binary systems – tie line – lever rule – phase diagram – invariant reactions - nucleation – homogeneous and heterogeneous nucleation – free energy of formation of a critical nucleus – Thin films – preparation: PVD, CVD method – Nanomaterials Preparation: wet chemical, solvothermal, sol-gel method.

UNIT II	ELECTRICAL PROPERTIES OF MATERIALS	9

Classical free electron theory - expression for electrical conductivity – thermal conductivity, - Wiedemann-Franz law - Quantum free electron theory – tunneling - degenerate states – Fermi- Dirac statistics – density of energy states – electron in periodic potential – electron effective mass – concept of hole. Superconducting phenomena, properties of superconductors – Meissner effect and isotope effect. Type I and Type II superconductors, High Tc superconductors – Magnetic levitation and SQUIDS.

UNIT III	SEMICONDUCTING PROPERTIESMATERIALS	9

Elemental Semiconductors - Compound semiconductors - Origin of band gap in solids (qualitative) - carrier concentration in metals - carrier concentration in an intrinsic semiconductor (derivation) – Fermi level – variation of Fermi level with temperature – electrical conductivity – band gap determination – carrier concentration in n-type and p-type semiconductors (derivation) – variation of Fermi level with temperature and impurity concentration – Hall effect – determination of Hall coefficient – LED - Solar cells.

UNIT IV	DIELECTRIC AND MAGNETIC MATERIALS	9

Dielectric, Paraelectric and ferroelectric materials - Electronic, Ionic, Orientational and space charge polarization – Internal field and deduction of Clausius Mosotti equation – dielectric loss – different types of dielectric breakdown – classification of insulating materials and their applications - Ferroelectric materials - Introduction to magnetic materials - Domain theory of ferromagnetism, Hysteresis, Soft and Hard magnetic materials – Anti-ferromagnetic materials – Ferrites, Giant Magneto Resistance materials.

UNIT V	NEW MATERIALS AND APPLICATIONS	9

Ceramics – types and applications – Composites: classi cation, role of matrix and reinforcement – processing of fibre reinforced plastics and ibre nfo metals Metallic glasses – Shape memory alloys – Copper, Nickel and Titanium based al oys – grapheme and its properties – Relaxor ferroelectrics - Biomaterials – hydroxyapatite – PMMA – Silicone - Sensors: Chemical Sensors - Bio-sensors – Poly

TOTAL : 45 PERIODS

COURSE OUTCOMES: On completion of the course, the students should be able to

CO1 : acquire knowledge of phase diagram, and thin film and nanomaterial preparation techniques
CO2 : familiarize with conducting materials, basic quantum mechanics, and properties and applications of superconductors.
CO3 : gain knowledge on semiconducting materials based on energy level diagrams, its types, temperature effect. Also, fabrication methods for semiconductor devices will be under tood.
CO4 : realize with theories and applications of dielectric and ferromagnetic materials CO5 : familiarize with ceramics, composites, metallic glasses, shape memory alloys, biomaterials and their important applications.

TEXT BOOKS:

1. W.D.Callitser and D.G.Rethwish. Materials Science and Engineering. John Wiley & Sons, 2014.
2. V.Raghavan. Materials Science and Engineering: A First Course. PHI Learning, 2015.
3. M.F.Ashby, P.J.Ferreira and D.L.Schodek. Nanomaterials, Nanotechnologies and Design: An Introduction for Engineers, 2011.

REFERENCES:

1. J.F.Shackelford. Introduction to Materials Science for Engineers. Pearson, 2015.
2. D.R. Askeland and W.J.Wright. Essentials of Materials Science and Engineering, Cengage Learning, 2013.
3. Charles Kittel, Introduction to Solid State Physics, Wiley India Edition, 2019.
4. Jean P.Mercier, G.Zambelli and W.Kurz, Introduction to Materials Science, Elsevier, 2002.
5. Yaser Dahman, Nanotechnology and Functional Materials for Engineers, Elsevier, 2017.