Thick film laser sintering: an evidence for two-step process

Antonelli, Eduardo; Andreeta, Marcello Rubens Barsi; Botero, Eriton Rodrigo; Hernandes, Antonio Carlos

Artículos de revistas

Fecha

2013-09

Registro en:

The Open Crystallography Journal, Bussum : Bentham Open, v. 6, p. 1-6, Sept. 2013

1874-8465

http://www.producao.usp.br/handle/BDPI/44969

10.2174/1874846501306010001

http://repositorioslatinoamericanos.uchile.cl/handle/2250/1640077

Autor

Antonelli, Eduardo

Andreeta, Marcello Rubens Barsi

Botero, Eriton Rodrigo

Hernandes, Antonio Carlos

Institución

Universidade de São Paulo (Brasil)

Resumen

The results for the sintering of Bi4Ti3O12 (BIT)-doped BaTi0.85Zr0.15O3 (BTZ) thick films, deposited by electrophoresis, using as heating source a CO2 laser are presented. The thermal process associated to the laser scanning sintering (LSS) acted in a similar way as a two-step-sintering process. This characteristic together with the high heating rate allowed us to obtain thick films with an average grain size of 200 nm, high relative density (~96%) and with a homogeneous microstructure. The X ray diffraction profile analysis show evidences for Bi3+ replacing Ba2+ at the A sites.

Materias

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