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Structure scans of individual sintered pieces: 1450 °C/30 min (a); 1475 °C/30 min (b); 1500 °C/30 min (c); 1525 °C/30 min (d); 1550 °C/30 min (e). In OM images, white/light areas depict the NiCo matrix, grey areas depict tungsten, and black areas depict voids/cracks.
