Effect of the Substrate on the Constrained Sintering of BaLa4Ti4O15 Thick Films

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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.

keywords

MICROWAVE DIELECTRIC-PROPERTIES; CRYSTAL-STRUCTURE; GRAIN-GROWTH; HOMOLOGOUS SERIES; QUALITY FACTOR; ALUMINA; DEFORMATION; DIFFUSION; LAMINATE

subject category

Materials Science

authors

Amaral, L; Jamin, C; Senos, AMR; Vilarinho, PM; Guillon, O

our authors

foto Ana Maria de Oliveira e Rocha Senos

Ana Maria de Oliveira e Rocha Senos

Associate Professor
foto Paula Maria Lousada Silveirinha Vilarinho

Paula Maria Lousada Silveirinha Vilarinho

Vice Director

Groups

2 - Multifunctional Ferroic Ceramics and Nanostructures
3 - Carbon Materials, Composites and Functional Coatings

acknowledgements

This work was supported by the Portuguese Foundation for Science and Technology, under grant no. SFRH/BD/40927/2007 and by the DAAD/GRICES Bilateral Action no. 0811978.

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Publication Details

type
Journal Article
year
2012
journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
volume
95
publisher
WILEY-BLACKWELL
issn
0002-7820
issue
12
digital object identifier
10.1111/j.1551-2916.2012.05466.x
web of science article identifier
WOS:000312145600017

Journal Metrics (JCR 2019)

Journal Impact Factor
3.502
Journal Impact Factor (5 yrs)
3.475
category normalized journal percentile
91.071

Citations

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