Insertion compounds and composites made by ball milling for .
WEBJan 18, 2016 · The XRD Rietveld refinement of (a) Na 4 V 2 (PO 4) 2 F 3 and the profile matching of (c) P′2Na 1 [Fe Mn ]O 2 phase obtained by ball milling using Na 3 P as a reducing reagent are shown ...