Researcher: Mr. Md. Muktadir Billah
Sintering of nano-sized pure BaTiO3 was carried out at 12200C between 30 to120 minutes. From the density vs sintering time curve, three stages of densification were identified followed by a stage of de-densification, based on the rate of densification. In the first stage, very high rate of densification was observed up to the sintering time of 40 minutes. In the second stage, the rate of densification started to decrease with increase in sintering time and this trend continued up to 90 minutes. In the third stage, the rate of densification was really low which continued up to the sintering time of 110 minutes. Finally, in the fourth stage, the rate of densification showed a negative trend and the overall density was lowered due to de-densification.
Caption: SEM micrograph of pure BaTiO3 sintered at 1220C for sintering time ranging from 30-120 minutes.