Low-Temperature Synthesis of Superconducting Nanocrystalline
Figure 2
SEM images of (a) mixture of commercial MgH2 and LiBH4 powders, (b) mixture of MgH2 and LiBH4 after SPEX mill for 1 h, (c) mixture of MgH2 and LiBH4 after dehydrogenation at 450°C for 12 h, and (d) as-synthesized MgB2 after purification.