Synthesis and characterization of cordierite based glass-ceramic

Cordierite glass-ceramic sample were made using with rice husk ash as the source of silica. Three different nucleating agent were introduced in the base glass composition - TiO2, ZrO2, and ZrO2-TiO2 in (1:1) proportion by weight. After preparation of these cordierite based glass-ceramic phase evaluation was studied in the temperature range 1250 to 1350oC. XRD and electron microscopy were employed to characterize all heat treated specimens. Linear thermal expansion behavior of the glass-ceramic samples was studied with the help of dilatometer. For hardness testing Vickers’s method was adopted