Preparation of Dense BaTiO3 Ceramics from Sol‐Gel‐Derived Monolithic Gels

Abstract
Dense, small‐grained BaTiO3 ceramics, with a grain size around 1 μm and a relative sintered density >98%, were obtained at 1100°C from sol‐gel‐derived gel monoliths without using any sintering additives. The monolithic gels asprepared had a relative density of about 50% and consisted of ultrafine pseudo‐cubic BaTiO3 particles (3 ceramic have been investigated.