Abstract
The effect of variation in flaky graphite content from 1 to 5 wt-% was studied in 1 wt-% N220 nanocarbon containing MgO–C refractories. Low carbon MgO–C refractory compositions were prepared by conventional manufacturing techniques, and products were characterised for various refractory related physical, mechanical, corrosion, phase analysis and microstructural studies. All the low carbon compositions were also compared against 16 wt-% flaky graphite containing conventional MgO–C refractory, without any nanocarbon, prepared under similar manufacturing conditions. Graphite (3 wt-%) with 1 wt-% nanocarbon containing composition resulted in better density and strength values, and 5 wt-% graphite with 1 wt-% nanocarbon containing composition showed better hot strength and corrosion resistance.
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