Magnetic Ceramics
Marzia Hoque Tania
Introduction
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magnetized force is the force of attraction or repugnance of a magnetised material due to the arrangement of its atoms, oddly its electrons.
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All magnetized phenomena result from forces between electric charges in motion.
Demonstration of the magnetic flake associated with (a) an orbiting electron and (b) a spin around electron.
Classifications
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There are various types of magnetic material classified ad by their magnetic susceptibilities: diamagnetic paramagnetic and ferromagnetic/ferrimagnetic.
reeking Magnetism
Diamagnetism
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Induced magnetic dipoles directed reverse to the external magnetic domain of a function. Requirements: atoms with completely filled orbitals Magnetic moment: no magnetic moment without applied field compensation of spin moments permeability / susceptibility: ?r< 1 , ?m < 0 (weak effect) Materials: inert gases, loft watch crystals, semiconductors, Cu, Au, Ag
wonky Magnetism: Diamagnetism
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solicitude of magnetic moments (H = 0):
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impaction on lines of flux in a homogeneous magnetic field:
Weak Magnetism: Diamagnetism
Weak Magnetism: Diamagnetism
Weak Magnetism: Diamagnetism
Weak Magnetism
Paramagnetism ? Alignment 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 materials: Alkali- and transition metals, out of date earth metals O2, Al, Sn, Pt
Weak Magnetism: Paramagnetism
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direction of magnetic moments (H = 0):
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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 it on our website: Ordercustompaper.com
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