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Magnetically hard materials are substances that exhibit strong magnetic properties and retain their magnetization even after the external magnetic field is removed. These materials have high coercivity, meaning they resist demagnetization and are often used in permanent magnets. Common examples include alloys like neodymium-iron-boron (NdFeB) and samarium-cobalt (SmCo). Their stability and durability make them essential in various applications, such as motors, generators, and magnetic storage devices.

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2w ago

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