Sintering and crystallisation behaviour of chemically prepared cordierite for application in electronic packaging

Synthesis and sintering of dense cordierite ceramics, prepared from magnesium and aluminium ions precipitated in dispersed silica have been reported and phase evolution at 1200 °C been studied by XRD. Densification of compacted precursor powder at 1200 °C has been substantiated by SEM and it was found that the dielectric properties of cordierite ceramics prepared by this route are good enough for substrate application.