The Open Crystallography Journal

2013, 6 : 1-6
Published online 2013 September 27. DOI: 10.2174/1874846501306010001
Publisher ID: TOCRYJ-6-1

Thick Film Laser Sintering: An Evidence for Two-step Process

Eduardo Antonelli , Marcello Rubens Barsi Andreeta , Eriton Rodrigo Botero and Antonio Carlos Hernandes
Department of Dermatology, Fukushima Medical University, Hikarigaoka 1, Fukushima 960-1295, Japan.

ABSTRACT

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.

Keywords:

Ceramic material, sintering, thick films, laser-heated, nanomaterials, dielectrics.