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Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15Thick Films

Amaral, Luís and Jamin, Christine and Senos, Ana M. R. and Vilarinho, Paula M. and Guillon, Olivier (2012):
Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15Thick Films.
In: Journal of the American Ceramic Society, pp. 3781-3787, 95, (12), ISSN 00027820,
[Online-Edition: http://dx.doi.org/10.1111/j.1551-2916.2012.05466.x],
[Article]

Abstract

This study focuses on constrained sintering of BaLa4Ti4O15 (BLT) thick films on Pt foils and BLT rigid substrates. The densification of BLT films is only retarded in comparison with their bulk counterpart, but, and in opposition to other constrained systems investigated until now, grain growth is favored in constrained BLT films. An additional degree of constraint is provided by using a rigid BLT substrate instead of a compliant platinum foil, which induces even larger coarsening. These observations point to the possible effect of mechanical stress developing during constrained sintering on the microstructure development.

Item Type: Article
Erschienen: 2012
Creators: Amaral, Luís and Jamin, Christine and Senos, Ana M. R. and Vilarinho, Paula M. and Guillon, Olivier
Title: Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15Thick Films
Language: English
Abstract:

This study focuses on constrained sintering of BaLa4Ti4O15 (BLT) thick films on Pt foils and BLT rigid substrates. The densification of BLT films is only retarded in comparison with their bulk counterpart, but, and in opposition to other constrained systems investigated until now, grain growth is favored in constrained BLT films. An additional degree of constraint is provided by using a rigid BLT substrate instead of a compliant platinum foil, which induces even larger coarsening. These observations point to the possible effect of mechanical stress developing during constrained sintering on the microstructure development.

Journal or Publication Title: Journal of the American Ceramic Society
Volume: 95
Number: 12
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: 12 Nov 2012 08:53
Official URL: http://dx.doi.org/10.1111/j.1551-2916.2012.05466.x
Identification Number: doi:10.1111/j.1551-2916.2012.05466.x
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