Why Samarium Cobalt Magnets Is More EffectiveAmongst

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Why Samarium Cobalt Magnets Is More Effective
Amongst REE?
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At the present time, it has been proved that
there are indeed plentiful of these elements,
just not often found in concentrations able to be
mined economically. Last year alone 124,000 tons
of Rees were mined, with another 130 million in
reserve worldwide. There are 17 rare earth
elements, including the 15 elements in lanthanide
series and two other elements i.e. Yttrium and
Scandium. These are found with the lanthanides in
nature. The least abundant of the REE, thulium is
found with 200 times which has more abundance
than gold.
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Rare Earth Magnets are strong permanent magnets
which are not exactly rare to find but it takes a
lot of processing to be manufactured. These are
the strongest types of permanent magnets
producing significantly stronger magnetic fields.
Samarium Cobalt being one of the two Rare Earth
Magnets is also known as SmCo5. This magnet can
withstand higher temperatures than a Neodymium
magnet, the other type of rare magnet.
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There Are Two Types Of Rare Earth Magnets
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Neodymium magnets

• These small, metallic magnets are made from
  neodymium, iron, boron, and other transitional
  metals and come in disks, rings, and blocks.
  Neodymium magnets are sensitive to temperature
  and corrosion, which is why they are generally
  coated.

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Samarium cobalt magnets

• these small but strong magnets, made from
  samarium, cobalt, and iron also come in simple
  shapes like blocks, disks, and rings. They do not
  corrode and also do not require any coating.

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There are a variety of useful applications

• Audio speakers
• Bicycle dynamos
• Computer disc drives
• Linear actuators
• Mechanically powered flashlights
• Motors
• Electrodynamics bearings
• Geocatching
• Industrial equipment protection
• Jewelry closures

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• Permanent magnet motors in cordless tools
• Satellite systems Sensors
• Mounting tools
• MRI machines
• Oil filters
• Traveling wave tubes
• Toys
• Welding clamps

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The manufacturing of neodymium magnets

• The manufacturing of neodymium magnets began
  in 1983. Neodymium has a bright, silvery metallic
  luster as these are made of an alloy of iron,
  boron and neodymium, a rare earth element. These
  magnets are brittle and are often plated with a
  protective coating of metals such as nickel to
  help protect from breaking and chipping. Being
  one of the reactive rare earth metals, it quickly
  oxidizes in air. It is highly corrosive and come
  in many sizes, shapes and colors.

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Samarium Cobalt magnets manufacturers regularly
assembled these into products using epoxies where
the surface is properly prepared. These are
sintered more expensive than Neodymium Iron Boron.
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Armstrong Magnetics
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