Investigation on the Effects of Milling Atmosphere on
A mixture of barium ferrite, BaO⋅6(Fe 2 O 3) (Sigma-Aldrich, particle size≤44 μm) and graphite (Sigma-Aldrich, particle size≤20 μm) was treated mechano-chemically in a high energy planetary ball mill for 10, 15, 20 and 40 hours under air and argon atmosphere.Ball to powder mass ratio and rotating speed were 35 and 300 rpm, …
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