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Effect of Floating Zone Refining under Reduced Hydrogen Pressure on Copper Purification

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Figure

Fig. 1Schematic diagram of the coil for FZR of copper.
Fig. 2RRRB profiles of the zone-refined Cu rods after 3, 5 and 7 passes.
Table 2GDMS results for the starting material and the zone-refined copperafter 5 passes (mass ppm).and
Fig. 4SEM observation of the slag-like film.

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