Download link is provided for Students to download the Anna University PH3251 Materials ScienceLecture Notes,SyllabusPart A 2 marks with answers & Part B 16 marks Question, Question Bank with answers, All the materials are listed below for the students to make use of it and score good (maximum) marks with our study materials.
“PH3251 Materials Science Notes, Lecture Notes Previous Years Question Papers”
“PH3251 Materials Science Important 13 marks Questions with Answers”
“PH3251 Materials Science Important 15 marks Questions with Answers”
“PH3251 Materials Science Important 2 marks Questions with Answers”
“PH3251 Materials Science Important Part A, Part B & Part C Questions”
“PH3251 Materials Science Syllabus, Local Author Books, Question Banks”
Syllabus, Lecture Notes, Important Part-A 2 Marks Questions and Important Part-B 16 Mark Questions, Previous Years Question Papers Collections.
PH3251 Materials Science Syllabus
UNIT I
CRYSTALLOGRAPHY
9
Crystal structures: BCC, FCC and HCP – directions and planes – linear and planar densities – crystal imperfections- edge and screw dislocations – grain and twin boundaries – Burgers vector and elastic strain energy- Slip systems, plastic deformation of materials – Polymorphism – phase changes – nucleation and growth – homogeneous and heterogeneous nucleation.
UNIT II
ELECTRICAL AND MAGNETIC PROPERTIES OF MATERIALS
9
Classical free electron theory – Expression for electrical conductivity – Thermal conductivity, expression – Quantum free electron theory :Tunneling – degenerate states – Fermi- Dirac statistics – Density of energy states – Electron in periodic potential – Energy bands in solids – tight binding approximation – Electron effective mass – concept of hole. Magnetic materials: Dia, para and ferromagnetic effects – paramagnetism in the conduction electrons in metals – exchange interaction and ferromagnetism – quantum interference devices – GMR devices.
UNIT III
SEMICONDUCTORS AND TRANSPORT PHYSICS
9
Intrinsic Semiconductors – Energy band diagram – direct and indirect band gap semiconductors – Carrier concentration in intrinsic semiconductors – extrinsic semiconductors – Carrier concentration in N-type & P-type semiconductors – Variation of carrier concentration with temperature – Carrier transport in Semiconductors: Drift, mobility and diffusion – Hall effect and devices – Ohmic contacts – Schottky diode.
UNIT IV
OPTICAL PROPERTIES OF MATERIALS
9
Classification of optical materials – Optical processes in semiconductors: optical absorption and emission, charge injection and recombination, optical absorption, loss and gain. Optical processes in quantum wells – Optoelectronic devices: light detectors and solar cells – light emitting diode – laser diode – optical processes in organic semiconductor devices –excitonic state – Electro-optics and nonlinear optics: Modulators and switching devices – plasmonics.
UNIT V
NANOELECTRONIC DEVICES
9
Quantum confinement – Quantum structures – quantum wells, wires and dots – Zener-Bloch oscillations – Resonant tunneling – quantum interference effects – mesoscopic structures – Single electron phenomena – Single electron Transistor. Semiconductor photonic structures – 1D, 2D and 3D photonic crystal. Active and passive optoelectronic devices – photo processes – spintronics – carbon nanotubes: Properties and applications.
