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Classification of magnetic materials
Classification:
Magnetic materials have strong magnetic substances with magnetic ordering, and in a broad sense also include weak magnetic and antiferromagnetic substances that can apply their magnetic properties and magnetic effects. Magnetism is a fundamental property of matter. Substances can be divided into diamagnetic, paramagnetic, ferromagnetic, antiferromagnetic and ferrimagnetic substances according to their internal structure and their properties in an external magnetic field. Ferromagnetic and ferrimagnetic substances are strongly magnetic substances, and diamagnetic and paramagnetic substances are weakly magnetic substances. Magnetic materials are divided into two types of metal and non-metal according to their properties. The former mainly includes electrical steel, nickel-based alloys and rare earth alloys, and the latter is mainly ferrite materials. According to the use is divided into soft magnetic materials, permanent magnetic materials and functional magnetic materials. Functional magnetic materials mainly include magnetostrictive materials, magnetic recording materials, magnetoresistive materials, magnetic bubble materials, magneto-optical materials, gyromagnetic materials and magnetic thin film materials, etc. The basic magnetic properties of magnetic materials are reflected by magnetization curves, hysteresis loops and magnetic losses.
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