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The magnetic field typically produced by rare-earth magnets can exceed 1.2 teslas, whereas ferrite or ceramic magnets typically exhibit fields of 0.5 to 1 tesla. There are two types: neodymium magnets and samarium–cobalt magnets. Rare-earth magnets are extremely brittle and also vulnerable to corrosion, so they are usually plated or coated to ...
A samarium–cobalt (SmCo) magnet, a type of rare-earth magnet, is a strong permanent magnet made of two basic elements: samarium and cobalt.. They were developed in the early 1960s based on work done by Karl Strnat at Wright-Patterson Air Force Base and Alden Ray at the University of Dayton.
A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure. [1] They are the most widely used type of rare-earth magnet. [2]
Canonical examples of nanomagnets are grains [1] [2] of ferromagnetic metals (iron, cobalt, and nickel) and single-molecule magnets. [3] The vast majority of nanomagnets feature transition metal ( titanium , vanadium , chromium , manganese , iron, cobalt or nickel) or rare earth ( Gadolinium , Europium , Erbium ) magnetic atoms.
Of the more commonly available magnets, only rare-earth magnets such as neodymium and samarium-cobalt are stronger. Alnico magnets produce magnetic field strength at their poles as high as 1500 gauss (0.15 tesla ), or about 3000 times the strength of Earth's magnetic field .
On Earth, this would translate to the north and south poles switching places every decade. #13 Salar Of Uyuni, Bolivia Salar de Uyuni is the world's largest salt flat, formed from the remnants of ...