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This paper reports a new black pigment based on strontium M-type hexaferrite (SrM) obtained from pure reagents or by the inclusion of Fe-rich wiredrawing sludge. The fired powders show a clear predominance of SrFe 12 O 19 . Also, haematite (α-Fe 2 O 3 ) and iron spinel were detected in variable amounts. These two phases are present in higher amounts (57 wt.%) in the...
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