A method of further purification of zone-refined aluminum by cold-crucible levitation melting in ultra-high vacuumH. Maeta, H. Osono, K. Fujii, M. Nishi, T. Endo and T. KinoMatériaux & Techniques, 91 (2003) 11-14DOI: https://doi.org/10.1051/mattech/200391120011s