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Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15 Thick Films
Article first published online: 12 OCT 2012
© 2012 The American Ceramic Society
Journal of the American Ceramic Society
Volume 95, Issue 12, pages 3781–3787, December 2012
How to Cite
Amaral, L., Jamin, C., Senos, A. M. R., Vilarinho, P. M., Guillon, O. (2012), Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15 Thick Films. Journal of the American Ceramic Society, 95: 3781–3787. doi: 10.1111/j.1551-2916.2012.05466.x
- Issue published online: 5 DEC 2012
- Article first published online: 12 OCT 2012
- Manuscript Accepted: 24 AUG 2012
- Manuscript Received: 22 SEP 2011
- Portuguese Foundation for Science and Technology. Grant Number: SFRH/BD/40927/2007
- DAAD/GRICES. Grant Number: no. 0811978
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.