Electrical Engineering Materials for GTU 18 Course (VI- Electrical /Open Elec.-II - 3160923)

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1. Conductors Classification : High conductivity, high resistivity materials, fundamental requirements of high conductivity materials and high resistivity materials, mobility of electron in metals, factors affecting conductivity and resistivity of electrical material, thermoelectric Effect : Seeback effect, Peltier effect, commonly used high conducting materials : copper, aluminium, bronze brass properties and characteristics, constantan, platinum and nichrome properties, characteristics and applications, material used for AC and DC machines. (Chapter 1 and 2) 2. Dielectric Materials and Insulators Properties of gaseous, liquid and solid dielectric, dielectric as a field medium, electric conduction in gaseous, liquid and solid dielectric, breakdown in dielectric materials, mechanical and electrical properties of dielectric materials, effect of temperature on dielectric materials, polarization, loss angle and dielectric loss, petroleum based insulating oils, transformer oil, capacitor oils and its properties, classification of insulation (Solid) and application in AC and DC machines, solid electrical insulating materials, fibrous, paper boards, yarns, cloth tapes, sleeving wood, impregnation, plastics, filling and bounding materials, fibrous, film, mica, rubber, mica based materials, ceramic materials. (Chapter 3 and 4) 3. Magnetic Materials Basic terms, classification of magnetic material : diamagnetic, paramagnetic, ferromagnetic, anti- ferromagnetic and amorphous material, hysteresis loop, magnetic susceptibility. coercive force, curie temperature, magneto-striction, factors affecting permeability and hysteresis loss, common magnetic materials: soft and hard magnetic materials, electric steel, sheet steel, cold rolled grain-oriented silicon steel, hot rolled grain-oriented silicon steel. (Chapter 5) 4. Semi-Conductors and Superconductors General concepts, energy bands, types of semiconductors : intrinsic Semi-conductors, extrinsic Semi-conductors, compound semiconductor, amorphous semiconductor, hall effect, drift, mobility, diffusion in Semiconductors, semi-conductors and their applications. Superconductors : Superconductivity, properties of superconductors, critical field, Meissner effect, type-I and type-II Superconductors. (Chapter 6 and 7) 5. Special purpose materials Nickel iron alloys, high frequency materials, permanent magnet materials, feebly magnetic materials, ageing of a permanent magnet, effect of impurities, Losses in Magnetic materials, Refractory Materials, Structural Materials, Radioactive Materials, Galvanization and Impregnation of materials. (Chapter 8)

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Author: [Vinayak Gaikwad, Sagar Wankhede] Pages: 336 Edition: 2021 Vendors: Technical Publications