Magnetic Ceramics Marzia Hoque Tania Introduction ? magnetized force is the force of haulage or repugnance of a magnetised material cod to the arrangement of its atoms, oddly its negatrons. ? All magnetized phenomena result from forces amongst electric charges in motion. Demonstration of the magnetized flake associated with (a) an orbiting electron and (b) a spin out around electron. Classifications ? There are sundry(a) types of charismatic material classified ad by their magnetized susceptibilities: diamagnetic paramagnetic and ferromagnetic/ferrimagnetic. reeking Magnetism Diamagnetism ? ? ? ? ? induce magnetic dipoles directed reverse to the external magnetic demesne of a function. Requirements: atoms with completely filled orbitals Magnetic flake: no magnetic moment without applied field compensation of spin moments permeability / susceptibility: ?r< 1 , ?m < 0 (weak effect) Materials: sulky gases, loft watch crystals, s emiconductors, Cu, Au, Ag wonky Magnetism: Diamagnetism ? misgiving of magnetic moments (H = 0): ? collisionion on lines of flux in a homogeneous magnetic field: promiscuous Magnetism: Diamagnetism tender Magnetism: Diamagnetism Weak Magnetism: Diamagnetism Weak Magnetism Paramagnetism ? onlyiance of imperishable magnetic dipoles in the direction of the external magnetic field.
? requirements: atoms with partially filled orbitals ? magnetic moment: permanent magnetic moment 0 (weak effect) ? materials: Alkali- and transition metals, out of date reason metals O2, Al, Sn, Pt Weak Magnetism: Paramagnetism ? dire! ction of magnetic moments (H = 0): ? impact on lines of flux in a homogeneous magnetic field: Weak Magnetism: Paramagnetism Weak Magnetism: Paramagnetism Weak Magnetism: Paramagnetism Strong Magnetism Ferromagnetism ? Spontaneous alignment of all permanent magnetic dipoles within a domain in the crystal lattice (only metals). ? requirements: atoms with partially filled orbitals ? magnetic moment: large magnetic...If you want to get a full essay, order of magnitude it on our website: BestEssayCheap.com
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