Microstructural homogeneity of a rebonded magnesia-chrome brick used in tunnel kiln in a period of 10 years were studied by means of OM, SEM, EDAX and XRD.
It produces rebonded magnizium-zirconium bricks which is made up of fused magnesite and fused eutectic MgO-Z_rO_2 materials. Then it analyzed the properties of samples after sintering.