Magnesium and Boron Powders
PartSupplies the elements for MgB2 (Tc 39 K), reacted at about 650 to 900 °C in argon or a sealed metal tube because magnesium vapor attacks bare quartz. Buy magnesium of 99.8% at -325 mesh and amorphous boron of 95% or better at micron size or finer, because boron purity and particle size limit MgB2 quality. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.