Synthesis and characterization of PLZT (9/65/35) by the Pechini method and partial oxalate

Cerqueira, M.; Nasar, R. S.; Leite, E. R.; Longo, Elson; Varela, José Arana

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/31339

Title:

Synthesis and characterization of PLZT (9/65/35) by the Pechini method and partial oxalate

Author(s):

Institution:

Universidade Federal do Rio Grande do Norte (UFRN)
Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (UNESP)

ISSN:

0167-577X

Abstract:

ZrTiO4 (ZT), obtained by the Pechini method, was used as precursor for obtaining PLZT (lead lanthanum zirconium titanate). An aqueous solution of oxalic acid was prepared with particles of ZT, Pb(NO3)(2) and La2O3. After the PbC2O4 and La2O3 precipitate on ZT particles, the materials were calcined and X-ray diffraction (XRD) showed the cubic phase of PLZT. This material was sintered, in two steps, and a density of about 8.0 g/cm(3) was obtained. After the second sintering the XRD pattern showed the occurrence of tetragonal and rhombohedral phases. This was caused by a stoichiometric deviation and the material showed a high optical transparency. (C) 1998 Elsevier B.V. B.V. All rights reserved.

Issue Date:

1-May-1998

Citation:

Materials Letters. Amsterdam: Elsevier B.V., v. 35, n. 3-4, p. 166-171, 1998.

Time Duration:

166-171

Publisher:

Elsevier B.V.

Keywords:

synthesis
Pechini process
zirconium titanate
ZrTiO4
Pb containing ZrTiO4 (PLZT)

Source:

http://dx.doi.org/10.1016/S0167-577X(97)00240-1

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/31339

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