Paper Title:
Laser Sintering of BaTiO3 Ceramics Obtained from Nanometric Powders
  Abstract

We have studied the synthesis and sintering of BaTiO3 (BTO) nanometric powders produced by Pechini technique. A laser sintering procedure was applied to the BTO and its major advantage was the quickness of the processing. We have used the radiation of a CO2 laser (CW – 100 W) as the heating source. A linear rate of irradiation was applied to avoid macroscopic defects. The calcined powder at 800°C presented a single crystalline phase confirmed by the XRD and a crystallite size of 20 nm. BTO ceramics sintered at Pmax = 7.0 W/mm2 for 10 min of irradiation showed a high relative density (98 ± 1) % with an average grain size of 400 nm for a total time of sintering of 40 minutes.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
1216-1220
DOI
10.4028/www.scientific.net/MSF.514-516.1216
Citation
R. S. da Silva, A. C. Hernandes, "Laser Sintering of BaTiO3 Ceramics Obtained from Nanometric Powders", Materials Science Forum, Vols. 514-516, pp. 1216-1220, 2006
Online since
May 2006
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Price
$32.00
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