Preparation of lanthanum doped Bi4Ti3O12 ceramics by the polymeric precursor method

Artigo

Fecha

2006-08-01

Registro en:

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

0254-0584

http://hdl.handle.net/11449/69012

10.1016/j.matchemphys.2005.09.070

WOS:000238298100055

2-s2.0-33646522933

3573363486614904

http://repositorioslatinoamericanos.uchile.cl/handle/2250/3918511

Autor

Universidade Estadual Paulista (Unesp)

Universidade Federal de São Carlos (UFSCar)

University of Belgrade

Institución

Universidade Paulista Júlio de Mesquita Filho (Brasil)

Resumen

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.

Materias

Polymeric precursor method

Structural distortion

Ceramic materials

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