SrTi1−xZrxO3 uniform particles: Low-temperature synthesis, characterization and sintered properties

✍ Scribed by Changlong Chen; Yuling Wei; Dairong Chen; Xiuling Jiao

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 583 KB
• Volume: 205
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/j.jmatprotec.2007.11.202

✦ Synopsis

SrTi 1-x Zr x O 3 Low temperature Sintering properties a b s t r a c t Perovskite-type SrTi 1-x Zr x O 3 (0 ≤ x ≤ 0.55) particles with spherical shape are prepared via a controlled precipitation process at 60-80 • C using TiCl 4 , ZrOCl 2 •8H 2 O and SrCl 2 •6H 2 O as starting materials. Samples are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FT-IR) spectra, and transmission electron microscopy. Sintering experiments at different temperatures (1300-1550 • C) reveal that the zirconium contents in the compounds have significant effects on their sintering properties, in which a Zr/Ti molar ratio of ca. 0.27/0.73 is best for achieving dense ceramic.