Preparation of lanthanum doped Bi4Ti3O12 ceramics by the polymeric precursor method

Simões, A. Z.; Quinelato, C.; Ries, A.; Stojanovic, B. D.; Longo, Elson; Varela, José Arana

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/69012

Title:

Preparation of lanthanum doped Bi4Ti3O12 ceramics by the polymeric precursor method

Author(s):

Institution:

Universidade Estadual Paulista (UNESP)
Universidade Federal de São Carlos (UFSCar)
University of Belgrade

ISSN:

0254-0584

Abstract:

Lanthanum-modified bismuth titanate, Bi4 - xLaxTi3O12 (BLT) ceramics, with x ranging from 0 to 0.75 were prepared by the polymeric precursor method. Orthorhombicity of the system is decreased with the increase of lanthanum content in the bismuth titanate (BIT) crystal lattice. No secondary phases were evident after lanthanum addition. Increasing lanthanum content causes a structural distortion in the bismuth titanate lattice. The shape of the grains is strongly influenced by the lanthanum added to the system. © 2005 Elsevier B.V. All rights reserved.

Issue Date:

1-Aug-2006

Citation:

Materials Chemistry and Physics, v. 98, n. 2-3, p. 481-485, 2006.

Time Duration:

481-485

Keywords:

Ceramics
Crystal structure
Sintering
Bismuth compounds
Crystal lattices
Doping (additives)
Grain size and shape
Lanthanum
Bismuth titanate
Orthorhombicity
Polymeric precursor method
Structural distortion
Ceramic materials

Source:

http://dx.doi.org/10.1016/j.matchemphys.2005.09.070

URI:

Access Rights:

Acesso restrito

Type:

outro

Source:

http://repositorio.unesp.br/handle/11449/69012

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