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Constrained sintering of BaLa4Ti4O15 thick films: Pore and grain anisotropy

Amaral, Luís and Jamin, Christine and Senos, Ana M. R. and Vilarinho, Paula M. and Guillon, Olivier (2013):
Constrained sintering of BaLa4Ti4O15 thick films: Pore and grain anisotropy.
In: Journal of the European Ceramic Society, pp. 1801-1808, 33, (10), ISSN 09552219, [Online-Edition: http://dx.doi.org/10.1016/j.jeurceramsoc.2013.01.031],
[Article]

Abstract

Constrained sintering of BaLa4Ti4O15 (BLT) thick films on flexible platinum foil and on rigid BLT substrate showed enhanced grain growth and anisotropic microstructure development when compared with bulk samples having similar green packing and sintered under the same conditions. The evolution of the microstructural parameters (grain and pore shape, orientation) during densification and their correlation was investigated in films and compared with the morphological evolution in bulk samples. It is then expected that the appropriate choice of substrate will allow designing tailored microstructures of functional thick films with optimized performance.

Item Type: Article
Erschienen: 2013
Creators: Amaral, Luís and Jamin, Christine and Senos, Ana M. R. and Vilarinho, Paula M. and Guillon, Olivier
Title: Constrained sintering of BaLa4Ti4O15 thick films: Pore and grain anisotropy
Language: English
Abstract:

Constrained sintering of BaLa4Ti4O15 (BLT) thick films on flexible platinum foil and on rigid BLT substrate showed enhanced grain growth and anisotropic microstructure development when compared with bulk samples having similar green packing and sintered under the same conditions. The evolution of the microstructural parameters (grain and pore shape, orientation) during densification and their correlation was investigated in films and compared with the morphological evolution in bulk samples. It is then expected that the appropriate choice of substrate will allow designing tailored microstructures of functional thick films with optimized performance.

Journal or Publication Title: Journal of the European Ceramic Society
Volume: 33
Number: 10
Uncontrolled Keywords: Thick films; Barium lanthanum titanate; Constrained sintering; Microstructural anisotropy; Grain growth
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 18 Mar 2013 12:21
Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2013.01.031
Identification Number: doi:10.1016/j.jeurceramsoc.2013.01.031
Funders: This work was supported by the Portuguese Foundation for Science and Technology (FCT), under grant no. SFRH/BD/40927/2007 and by the DAAD/GRICES Bilateral Action no. 0811978.
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