06EE754 - Electerical Engineering Materials Regulation (2006 - 2007) |
PART – A |
UNIT – I CONDUCTING MATERIALS |
Review of metallic conduction on the
basis of free electron theory Fermi-Dirac distribution – variation of
conductivity with temperature and composition, materials for electric
resistors- general electric properties; brushes of electrical machines, lamp
filaments, fuses and solder. |
UNIT – II SEMICONDUCTORS |
Mechanism of conduction in semiconductors,
density of carriers in intrinsic semiconductors, the energy gap, types of
semiconductors. Hall effect, compound semiconductors, basic ideas of
amorphous and organic semiconductors. Magnetic materials: Classification
of magnetic materials- origin of permanent magnetic dipoles,
ferromagnetism, hard and soft magnetic materials magneto materials used in
electrical machines, instruments and relays. |
UNIT – III and IV |
DIELECTRICS: Dielectrics polarization under static fields- electronic ionic
and dipolar polarizations, behavior of dielectrics in alternating fields, Factors
influencing dielectric strength and capacitor materials. Insulating materials,
complex dielectric constant, dipolar relaxation and dielectric loss.
INSULATING MATERIALS: Inorganic materials (mica, glass, porcelain,
asbestos), organic materials (paper, rubber, cotton silk fiber, wood, plastics
and bakelite), resins and varnishes, liquid insulators (transformer oil) gaseous
insulators (air, SF6 and nitrogen) and ageing of insulators. |
PART – B |
UNIT – V MATERIALS FOR SPECIAL APPLICATIONS |
Materials for solar
cells, fuel cells and battery. Materials for coatings for enhanced solar thermal
energy collection and solar selective coatings, Cold mirror coatings, heat
mirror coatings, antireflection coatings, sintered alloys for breaker and
switch contacts. |
UNIT – VI MODERN TECHNIQUES FOR MATERIALS STUDIES |
Optical
microscopy, Electron microscopy, Photo electron spectroscopy, Atomic
absorption spectroscopy, magnetic resonance, nuclear magnetic resonance,
electron spin resonance and ferromagnetic resonance. |
UNIT – VII |
Introduction Properties and Application of Piezoelectric materials,
Eletrostrictive materials, Ferromagnetic materials, Magnetosrtictive
materials, Shape memory alloys, Electro archeological fluids, Magneto
archeological fluids, Smart hydrogels
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UNIT – VIII |
Ceramics: properties, application to conductors, insulator & capacitors
Plastics: Thermoplastics, rubber, thermostats, properties.
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REFERENCE |
TEXT BOOKS: |
1. “An Introduction to Electrical Engineering”- Indulkar C.S. &
Thiruvengadam. S.
2. “Electrical Engineering Materials”-Yu Koritsky, MIR.
3. “Materials Science for Electrical & Electronics Engineering”-
Ian P.Jones. Oxford University Press,2007
4. “Materials Science”-Arumugam M, Anuradha Publishers, 1990.
5. “Applied Solar Energy”-An Introduction -Meinal A.B Meinal M
P, – An Introduction., Addison Wesley Publications.
6. “Electrical Engineering Materials”-Kapoor P L., Khanna
Publications.
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