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2. Samarium–cobalt magnet - Wikipedia

   en.wikipedia.org/wiki/Samarium–cobalt_magnet

   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.

3. Rare-earth magnet - Wikipedia

   en.wikipedia.org/wiki/Rare-earth_magnet

   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 ...

4. Trump tells Pentagon to find better sources of rare earth magnet

   www.aol.com/news/trump-tells-pentagon-better...

   Trump said that the United States did not have enough capacity to make samarium cobalt rare earth permanent magnets, which can withstand high temperatures and are resistant to corrosion.

5. Samarium - Wikipedia

   en.wikipedia.org/wiki/Samarium

   Samarium is a rare earth element with a hardness and density similar to zinc. With a boiling point of 1,794 °C (3,261 °F), samarium is the third most volatile lanthanide after ytterbium and europium and comparable in this respect to lead and barium; this helps separation of samarium from its ores.

6. Neodymium magnet - Wikipedia

   en.wikipedia.org/wiki/Neodymium_magnet

   This magnetic energy value is about 18 times greater than "ordinary" ferrite magnets by volume and 12 times by mass. This magnetic energy property is higher in NdFeB alloys than in samarium cobalt (SmCo) magnets, which were the first type of rare-earth magnet to be commercialized. In practice, the magnetic properties of neodymium magnets depend ...

7. Rare-earth element - Wikipedia

   en.wikipedia.org/wiki/Rare-earth_element

   Rare-earth magnets, lasers, core material for carbon arc lighting, colorant in glasses and enamels, additive in didymium glass used in welding goggles, [11] ferrocerium firesteel (flint) products, single-mode fiber optical amplifiers (as a dopant of fluoride glass) 9.2 60 Nd Neodymium: from the Greek "neos", meaning new, and "didymos", meaning ...