Dysprosium

Material information

The Heat Shield of the Magnet World

Ensuring performance under pressure with Less Common Metals.

Dysprosium gets its name from the Greek ‘dysprositos’, meaning “hard to get.” But while it may be difficult to isolate, it is impossible to ignore. 

In the era of high-performance technology, Dysprosium is the critical element that allows super-magnets to operate in extreme heat. Without it, the motors in electric vehicles and the generators in wind turbines would fail under the stress of operation.

As a leading UK manufacturer of high-purity rare earths, Less Common Metals (LCM) bridges the gap between raw potential and industrial application. Based in Ellesmere Port, UK, we provide the high-grade Dysprosium metal essential for the green energy transition and advanced nuclear sectors.

Technical Details

CompositionDysprosium Ingot 99.5% /Dysprosium Sublimed 99.95%
Common metallic impuritiesTrace metals basis
Physical DescriptionBright silver metallic lump or ingot. Typical piece size: 25-100mm. Fine particles to comprise <1% of delivered weight
AnalyticsICP-OES
Certificate of analysisAvailable upon request
PackagingPacked in sealed polythene bags and supplied in securely sealed metal drums, resistant to the impregnation of water

What is Dysprosium?

Dysprosium is a bright, silver metallic element of the lanthanide series. It is soft enough to be cut with a knife and has one of the highest magnetic strengths of all the rare earths. Its most valuable property, however, is its ability to resist demagnetisation at high temperatures.

What is Dysprosium used for?

Dysprosium is often used as a “force multiplier” for other materials. Its unique magnetic properties make it indispensable in:

  • Permanent Magnets (EVs & Wind Power): This is the single most critical use of Dysprosium today. It is added to Neodymium-Iron-Boron (NdFeB) magnets to increase their coercivity (resistance to demagnetisation). This allows the magnets in EV motors and wind turbines to function efficiently at high operating temperatures without losing strength.
  • Nuclear Reactors: Dysprosium has a very high thermal neutron absorption cross-section. This means it is excellent at absorbing neutrons, making it a key material for the control rods used to regulate or shut down nuclear reactors safely.
  • Magnetostrictive Materials: Dysprosium is a component of Terfenol-D, a material that changes shape when exposed to a magnetic field. This property is used in high-precision sonar systems, sensors and transducers.
  • Data Storage: Because of its high magnetic susceptibility, Dysprosium and its compounds are used in hard disk drives and other data storage devices where high-density recording is required.

Dysprosium Industry Insight

The ‘Critical’ Critical Mineral

While Neodymium gets the headlines, Dysprosium is often the bottleneck. As it’s a “Heavy Rare Earth” (HREE), it is much scarcer than its lighter counterparts. As the global demand for EVs skyrockets, the need for a secure, Western supply of Dysprosium for high-temp magnets is a top priority for manufacturers.

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