Figure 4. Schematic picture of the phase-growing process. At the first stage of the firing process, the crystalline Cr2O3 and amorphous SiOx phases appear (a). At longer firing times, a complex oxide phase starts to grow (b).
Figure 4. Schematic picture of the phase-growing process. At the first stage of the firing process, the crystalline Cr2O3 and amorphous SiOx phases appear (a). At longer firing times, a complex oxide phase starts to grow (b).