Magnetic Materials

This module aims to provide the theoretical background and technological importance of magnetic materials. Principles of Magnetism
Magnerisation
Magnetic wall movement and rotation of magnetic domains
Parametric control of magnetisation
Categories of ferromagnetic materials
Magnetic Phenomena
Tecqniques for Magnetic characterisation
Hysteresis loop
Magnetostriction
B-H loop
Iron and Iron alloys
Cobalt, nickel and its alloys
Permanent magnets, Review and basic applications
Hard/Permanent Magnets
Rare earth, Theory and properties
Electrical Steels
Magnetic Oxides
Spinels, ferrites, orthoferrites,
Granets
Magnetic semiconductors
2D magnetic materials
Magnetic powders

Laboratatory Practicals:

1. Magnetisation Loop
2. Electocal Steels, measurement of magnetic properties and correlation with microstructure
3. Fe-Co-Ni alloys, magnetic behaviour and characterisation of magnetic domains with electron microscopy
4. Magnetic oxides and superconductors