Magnetic Levitation Motor Samarium Cobalt Magnet

Magnetic Levitation Motor Samarium Cobalt Magnet

Magnetic Levitation Motor Samarium Cobalt Magnet is one of the world's strongest magnets. They're used in a wide variety of applications such as Maglev trains that utilize magnetic fields to levitate and propel themselves along tracks, as well as rare-earth magnets used by Maglev trains that use their magnetic fields to levitate themselves along tracks. Due to being hard and brittle, rare-earth magnets must be handled carefully to avoid injury or material damage; additionally, they create dangerous pinch points that must not make contact with other magnets or surfaces - their magnetic properties depend on their structure & composition and understanding these elements is key to optimizing their performance and use.

Samarium-cobalt (SmCo) magnets are strong permanent magnets produced through sintering Samarium (Sm), Cobalt (Co), and various transition metals such as Iron (Fe), Copper (Cu), Hafnium (Hf), and Zirconium (Zr). Alloy varieties such as Sm1Co5, Sm2Co17, SmCo26, and SmCo24 exist - each boasting maximum energy products between 14 MGOe to 33 MGOe and coercive forces that resist demagnetization.

Samarium-Cobalt Magnets are less costly than their Neodymium Ferrite counterparts and require no excitation winding or exciter, offering greater design flexibility across various applications with reduced power losses overall. Unfortunately, they require more costly cobalt and may experience price fluctuations; two disadvantages that should be noted.

Samarium cobalt magnets can be quite complex in their chemical makeup and magnetic properties are determined by the individual phases' crystal structures. Recent research has demonstrated a correlation between changes to an atom's atomic structure and magnetic characteristics - such as in their magnetic characteristics - and changes to magnetic characteristics; with such knowledge being utilized to develop processes that optimize performance of samarium cobalt magnets.

For optimal use of samarium-cobalt permanent magnets in devices like demagnetization resistant magnets, it is crucial to understand their behavior at different temperatures. Knee points - measures of minimum field needed to cause an induction swing below remanence - have been found to vary based on crystal structure and temperature. Composite plots showing knee points against field requirements provide invaluable tools for identifying operating conditions that prevent irreversible demagnetization.

A newly developed adjustable intraocular lens (IOL) incorporates rare-earth magnets made of samarium and cobalt into its poly(methyl methacrylate) optic, enabling its magnetic elements to be mechanically adjusted as desired to achieve desired refractive index values. Magnetic IOLs offer several advantages over traditional lenses, including being able to change focus without touching or manipulating the eye, though their durability and reliability remain to be proven. To test the durability and reliability of magnetic IOLs, a samarium-cobalt intraocular lens was manufactured at the University of Missouri-Rolla and tested for both reversible magnetic adjustment and mechanical force testing.