Direct precipitation of lead zirconate titanate by the hydrothermal method |
| |
Authors: | T.R.N. Kutty R. Balachandran |
| |
Affiliation: | Inorganic & Physical Chemistry Department, Indian Institute of Science, Bangalore - 560 012, India |
| |
Abstract: | Direct precipitation of fine powders of lead zirconate titanate (PZT) in the complete range of solid solution, is investigated under hydrothermal conditions, starting from lead oxide and titania/zirconia mixed gels. The perovskite phase is formed in the temperature range of 165 – 340°C. Sequence of the hydrothermal reactions is studied by identifying the intermediate phases. The initial formation of PbO: TiO2 solid solution is followed by the reaction of the same with the remaining mixed gels giving rise to X-ray amorphous PZT phase. Further, through crystallite growth, the X-ray crystalline PZT is formed. This method can be extended for the preparation of PLZT powder as well. The resulting powders are sinterable to high density ceramics. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|