Medical Magnet Spotlight: Magnets and Cochlear Implants

Cochlear Implants

Magnets feature in a wide range of medical applications including heart pumps, surgical tools, hearing aids, and cochlear implants.  A cochlear implant is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception.  Unlike hearing aids, which amplify sounds, cochlear implants bypass damaged areas of the ear and…

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Coatings for Neodymium Magnets

Coatings for Neodymium Magnets

Nearly every neodymium magnet will be plated or coated and, as the most powerful permanent magnet available, they are used in many different applications. However, they possess physical characteristics that require them to be plated or coated in order to protect them from damage. In their raw form, neodymium magnets are quite brittle, and as…

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Bunting Introduces Carbon Neutral Neodymium Magnets

Carbon Neutral Neodymium Magnets

In response to feedback from European customers, Bunting-Berkhamsted is the first magnet supplier to offer carbon-neutral sintered Neodymium Iron Boron (NdFeB) rare earth magnets sold online through the company’s Bunting-eMagnets ecommerce website. The manufacture of magnets such as NdFeB requires a considerable amount of effort and energy, from mining of the raw materials through to…

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The History of Neodymium Magnets

History of Neodymium Magnets banner

The origin of the neodymium magnets dates back to 1885 when Carl Auer von Welsbach, an Austrian scientist and inventor, separated didymium into the new separate elements neodidymium (“new didymium”) and praseodidymium (“green didymium”).  In time, the element names would change to neodymium and praseodymium. Neodymium (Nd) is the fourth member of the lanthanide ‘rare-earth…

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Magnets in Santa’s Workshop

Magnets in santas workshop

Santa Claus has never been busier. Material shortages, transportation issues and the dreaded Coronavirus pandemic have stretched his elf workforce to the limits. His workshop is a hive of activity and, in amongst the organised chaos, magnets play an important role. So where are they? High Tech Toys use Neodymium Rare Earth Magnets Santa Claus…

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Magnets and the Curie Temperature

Curie Temperature

The term “Curie temperature (Tc)” or “Curie point” gets frequently mentioned when discussing magnets and magnetic properties.  The Curie temperature relates to the maximum temperature a material can reach before losing its magnetic properties.  On reaching a magnetic material’s Curie temperature, the spontaneous magnetisation in the material drops to zero.  At this point, the material…

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Neodymium Price Trends

Neodymium Price Trend

Updated 16th January 2023 At the beginning of January 2023, the price of neodymium reached the highest level since August 2022. The gradual rise (since September 2022) heightens prospects of the price exceeding 1,000,000 CNY/MT. However, the January 2023 price remains 14% lower than 12 months earlier in January 2022. (Trading Economics). The January 2023…

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Permanent Magnet Motors Providing Key Benefits

White drone motor close up on a black background

Permanent magnet motors are electric motors using permanent magnets in addition to windings.  Such motor designs are more efficient than induction motors or motors with field windings for certain high-efficiency applications such as electric vehicles and small electric motors such as found on drones and in car windshield wipers. Both AC and DC motors benefit…

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Everlube Coating Protects Neodymium Magnets

Everlube Coated Magnets from Bunting

The new Everlube anti-corrosion magnet coating combats the increasingly arduous working environments for magnets and magnetic components.  The Everlube coating prevents oxidation and deterioration of high-powered permanent neodymium rare earth magnets. The Everlube coating was originally developed as a brand of dry film lubricant products specifically designed to enhance and improve the performance of critical…

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Rare Earth Magnets in Electric Vehicle Motors

Electric Vehicle Plugged in and charging

The global move towards the electrification of vehicles continues to gather momentum.  In 2010, the number of electric cars on the world’s roads reached 7.2 million, of which 46% were in China (iea.org/reports/global-ev-outlook-2020).  By 2030, the number of electric cars is expected to swell to 250 million, a massive growth in a relatively short time.…

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