Magnesium boride is the inorganic compound with the formula MgB2. It is a dark gray, water-insoluble solid, The crystal structure belongs to hexagonal system.It is an intercalated compound with alternating layers of magnesium and boron.
MgB2 is a multi-band superconductor, that is each Fermi surface has different superconducting energy gap. For MgB2, sigma bond of boron is strong, and it induces large s-wave superconducting gap, and pi bond is weak and induces small s-wave gap. The quasiparticle states of the vortices of large gap are highly confined to the vortex core. On the other hand, the quasiparticle states of small gap are loosely bound to the vortex core. Thus they can be delocalized and overlap easily between adjacent vortices. Such delocalization can strongly contribute to the thermal conductivity, which shows abrupt increase above Hc1.
Chemical formula:MgB2
Density 2.57 g/cm3
Molar mass 45.93 g/mol
Crystal structure:Hexagonal, hP3
Melting point 830 °C (1,530 °F; 1,100 K) (decomposes)
Space group:P6/mmm, No. 191
Superconducting properties and low cost make magnesium boride attractive for a variety of applications. For those applications, magnesium boride powder is compressed with silver metal (or 316 stainless steel) into wire and sometimes tape via the PIT process.
Unlike elemental boron whose combustion is incomplete through the glassy oxide layered impeding oxygen diffusion, magnesium boride burns completely when ignited in oxygen or in mixtures with oxidizers. Thus magnesium boride has been proposed as fuel in ram jets. In addition the use of MgB2 in blast-enhanced explosives and propellants has been proposed for the same reasons.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
Contact our team of experts today and let us help you with your business!
