Formation of Zirconia Titanate Solid Solution from Alkoxides

Yamaguchi, Osamu; Mogi, Hiroshi

doi:10.1111/j.1151-2916.1989.tb06273.x

Cited by 18 publications

(6 citation statements)

References 5 publications

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“…No superlattice peaks indicative of long-range cation ordering were observed for any of the crystalline ZrTiO 4 samples. While Yamaguchi has reported 14 the preparation of partially ordered ZrTiO 4 samples using alkoxide solgel chemistry and a ≈700 °C heat treatment, the formation of disordered ZrTiO 4 at 700 °C has previously been observed for samples prepared using both alkoxide sol-gel 35 and coprecipitation 36 methods.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, alternative approaches to the preparation of high-quality powders have been explored. The routes investigated include a polymeric precursor made from titanium butoxide and zirconium oxychloride octahydrate, , coprecipitation from aqueous solution, − electrolytic deposition, mechanochemical synthesis, conventional alkoxide sol−gel methods, , a nonalkoxide sol−gel procedure in which zirconium acetylacetonate was mixed with acetic-acid-modified titanium isopropoxide, and nonhydrolytic sol−gel routes …”

Section: Introductionmentioning

confidence: 99%

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X-ray Diffraction and X-ray Absorption Spectroscopy Studies of Sol−Gel-Processed Zirconium Titanates

Lind

Wilkinson

et al. 2000

Chem. Mater.

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ZrTiO 4 samples were prepared by using a conventional hydrolytic alkoxide sol-gel route, a nonhydrolytic method, an acetic acid modified route, and by the direct reaction of the binary oxides. The local structure in the gels and its evolution upon heating was followed using EXAFS and XANES, and the crystallization of the products was examined using powder X-ray diffraction. All the solution-processed materials crystallized in the range 600-700 °C. The crystalline materials formed at 700 °C showed no evidence of any long-range cation ordering. The EXAFS data indicated that all the amorphous ZrTiO 4 samples produced using the solution routes contained zirconium with a coordination number >6 and that the disordered crystalline ZrTiO 4 contained six-coordinate zirconium. Both the XANES and EXAFS data showed that nearly all the amorphous ZrTiO 4 samples contained titanium with a coordination number of <6. The EXAFS data clearly indicated the presence of Zr-O-Ti links in the ZrTiO 4 gel produced using the nonhydrolytic route. There was also some evidence that the gel prepared using hydrolytic sol-gel chemistry contained Zr-O-Ti links.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

X-ray Diffraction and X-ray Absorption Spectroscopy Studies of Sol−Gel-Processed Zirconium Titanates

Lind

Wilkinson

et al. 2000

Chem. Mater.

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“…The relative amounts were determined by measuring the integrated intensities of (400) peaks at 340 (20). The amount present was strongly dependent on temperature (Fig.…”

Section: Crystallization Kinetics Studymentioning

confidence: 99%

Crystallization Kinetics Of Metallo-Organics Derived Pzt Thin Film

Chen

Mackenzie

1990

MRS Proc.

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PZT films on fused silica substrates were prepared by a multiple dipping-firing process from a stable solution of titanium isopropoxide, zirconium n-propoxide and lead 2-ethylhexanoate. The crystallization kinetics of the amorphous PZT films was studied by quantitative X-ray analysis. The crystallization of the amorphous film to perovskite phase involved a transitional pyrochlore structure phase. The entire crystallization was described by a consecutive phase transformation process in which nucleation dominated.

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“…PZT powder can be synthesized through several routes, including conventional, attrition milling and chemical ones [12][13][14][15][16]. Nevertheless, by considering the amorphous materials required for applications in piezophotonic devices, the chemical routes are better choice.…”

Section: Introductionmentioning

confidence: 99%

Photonic Properties of PZT Powders along the Crystallization Process of the Polymeric Precursor

Silva

Souza

Ramos

et al. 2018

MSF

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Lead zirconate titanate (PZT) is a wide versatile material applied in several electronic devices. Some of dielectric and piezoelectric characteristics depend on phase formation, crystallization and composition. In this work, we prepare PZT powder samples with different compositions by the Polymeric Precursor Method, which were thermally treated at very low temperatures in order to get amorphised powder samples. The zirconium-rich PZT6040 sample showed a significant uptake in photoluminescent emission between 320 oC and 350 oC, followed by a slightly increasing in bandgap energy. In spite of the bandgap energy posses the typical value for several structurally disordered semiconductors, these effects were associated to the coexistence of pyrochlore and tetragonal perovskite phases in that referred conditions.

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Formation of Zirconia Titanate Solid Solution from Alkoxides

Cited by 18 publications

References 5 publications

X-ray Diffraction and X-ray Absorption Spectroscopy Studies of Sol−Gel-Processed Zirconium Titanates

X-ray Diffraction and X-ray Absorption Spectroscopy Studies of Sol−Gel-Processed Zirconium Titanates

Crystallization Kinetics Of Metallo-Organics Derived Pzt Thin Film

Photonic Properties of PZT Powders along the Crystallization Process of the Polymeric Precursor

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