SOL-GEL PROCESS FOR THE MANUFACTURING OF TRANSLUCENT LEAD ZIRCONATE TITANATE GEL-MONOLITH
| Autor: | Tursiloadi, Silvester, Imai, Hiroaki, Hirashima, Hiroshi |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Jurnal Kimia Terapan Indonesia (Indonesian Journal of Applied Chemistry); Vol 6, No 1-2 (1996) |
| ISSN: | 0853-2788 2527-7669 |
| Popis: | Translucent Lead Zirconate Titanate (PZT) gel-monolith was prepared by partially hydrolyzing metal alkoxides solution which modified with acetylacetone(acacH). Metal alkoxides, lead di-i-propoxide, zirconium tetra-nbutoxide and titanium tetra-i-propoxide were used as starting materials. In Infrared spectra for the translucent monolithic gel after aging at room temperature for several days or drying at 90C for 18h, the most significant feature is the presence of band at around 1554 cm-1 which can be assigned to the v (C-O) and v (C-C) vibrati-ons of acetylacetanate group coordinated to the metal cations Ti and Zr. The diffraction peaks of PbO were found after heating at 300C for 2h. After heating at 450 C for 2 h, diffraction peaks of pyrochlore Pb2 Ti206 and perovskite PZT phase were observed. The diffraction peaks of PbO and pyrochlore phase disappeared after heating at 600C, and tetragonal perovskite phase was stable up to 1000 C. The diffraction peaks of perovskite phase were also found after heating at 430 for 24 h. The density of the compacted pulverizedgel after heating at 1000C for 30 min. was 6.9 g/cm3 , about 86% of the theoretical value. |
| Databáze: | OpenAIRE |
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