PZT prepared by spray drying : From powder synthesis to electromechanical properties
Bezzi, F; Costa, AL; Piazza, D; Ruffini, A; Albonetti, S; Galassi, C
| HERO ID | 325803 |
|---|---|
| In Press | No |
| Year | 2005 |
| Title | PZT prepared by spray drying : From powder synthesis to electromechanical properties |
| Authors | Bezzi, F; Costa, AL; Piazza, D; Ruffini, A; Albonetti, S; Galassi, C |
| Journal | Journal of the European Ceramic Society |
| Volume | 25 |
| Issue | 14 |
| Page Numbers | 3323-3334 |
| Abstract | A PZT niobium-doped material (PZTN) was developed from precursor powders obtained by spray drying of water solution of Zr and Pb nitrates, Ti isopropoxide and Nb-ammonium complex. The thermo-oxidative process as well as the phase evolution were analysed. The morphology of powders was investigated as a function of the spray-drying conditions. The stoichiometry of the systems was checked at each stage of the process and no fluctuation was detected. The obtained powders had a spherical, hollow and porous structure and were transformed into a pure perovskite phase at 550 °C. The samples, sintered at 1100 °C for 2 h in air showed 98% relative density at densification temperature of 100 °C lower than following the conventional mixed oxide route. The green and final densities were improved by introducing a grinding step and high pressure cold isostatic consolidation. Some sintered samples were fully densified by hot isostatic pressing (1100 °C, 300 bars) post-treatment, obtaining pore free structures. The electrical characterisation showed comparable or better properties than those obtained with the related oxide method. (English) |
| Doi | 10.1016/j.jeurceramsoc.2004.08.027 |
| Wosid | WOS:000231581200011 |
| Url | https://linkinghub.elsevier.com/retrieve/pii/S0955221904004005 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | Spray drying; Chemical route; PZT; Precursor solution; Densification; Electrical properties; Propriété électromécanique; Propriété électrique; Synthèse chimique; Poudre; Précurseur; Plomb Titanate Zirconate; Plomb zirconate; Plomb titanate; Addition niobium; Dopage; Séchage pulvérisation; Fabrication; Céramique électronique; Céramique oxyde; Etude expérimentale; O Pb Ti Zr; Pb(Zr,Ti)O3; Electromechanical properties; Chemical synthesis; Powder; Precursor; Lead Titanates Zirconates; Lead zirconates; Lead titanates; Niobium addition; Doping; Manufacturing; Electroceramics; Oxide ceramics; Experimental study; Propiedad electromecánica; Propiedad eléctrica; Densificación; SÃntesis quÃmica; Polvo; Plomo Titanato Zirconato; Adición niobio; Secado pulverización; Fabricación; Cerámica electrónica; Cerámica óxido; Estudio experimental |
| Is Qa | No |