Title :
Hydrothermal synthesis of bismuth titanate
Author :
Prasada Rao, A.V. ; Komarneni, S.
Author_Institution :
Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Bismuth titanate powder was synthesized at 240°C by hydrothermal method using bismuth and titanium coprecipitated hydrous oxides. Microstructural investigation of resultant powder revealed aggregates of about 5-10 μm. Pelletized samples derived from the above powder when heat treated at 1050°C for 2 hrs showed 93.3% theoretical density. Fractured surface of sintered pellet showed large platelets of the order of 10-20 μm indicating extensive grain growth
Keywords :
bismuth compounds; ferroelectric materials; powder technology; precipitation (physical chemistry); sintering; 1050 C; 240 C; Bi4Ti3O12; aggregate; bismuth titanate powder; coprecipitated hydrous oxide; density; fractured surface; grain growth; heat treatment; hydrothermal synthesis; microstructure; platelet; sintered pellet; Aggregates; Bismuth; Conductivity; Laboratories; Powders; Stacking; Surface cracks; Surface treatment; Temperature; Titanium compounds;
Conference_Titel :
Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on
Conference_Location :
East Brunswick, NJ
Print_ISBN :
0-7803-3355-1
DOI :
10.1109/ISAF.1996.598177
