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Magnesium diboride (MgB2)
This is a compound that has a hexagonal crystalline structure. It is an intercalation-type compound, with alternate layers of magnesium or boron.
Researchers have found that the temperature at which magnesium boride transforms into a high-temperature superconductor is slightly below 40K. Its temperature of transition is about twice that of superconductors with the same type.
Many practical applications already exist for superconductivity such as magnetic levitation and medical imaging. Superconductors can be used in many other fields of technology, including medical imaging and magnetic levitation trains.
Magnesium diboride (MgB2) has been a magnet for researchers ever since it was discovered. It is a superconductor which offers many advantages. Magnesium Boride is an easy-to-process, lightweight material that can be produced from a variety of pre-materials. Its low cost allows it to be used in many applications.
Superconductors are characterized by their critical current densities (Jc). It is extremely difficult to increase MgB2’s Jc in an economical manner.
Researchers from Shibaura Institute of Technology, Japan, published an article in the journal “Materials Science and Engineering : B”. The paper describes how ultrasonic treatments can be used to improve mass. MgB2Jc.
The method used is to use ultrasonic wave to completely disperse boron. The hexane can then be vaporized and removed to obtain a fine boron, which will then be sintered with the magnesium to create magnesium boride.
Researchers produce high quality bulk magnesium borid, the majority of which are free from oxidizing impurities. According to the time of sonication, the Jc values increased between 20% and 30% compared with the reference sample.
Researchers also discovered a mechanism to enhance Jc. The team discovered a layered structure on the boron-deficient por walls. This appeared to consist of a magnesium boronoxide coating.
Researchers say that this will reduce the cost and technical difficulty of superconductors. It will also make it easier to use for the public, particularly in the medical sector.
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