Constrained sintering of BaLa4Ti4O15 thick films: Pore and grain anisotropy

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 th...

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Bibliographic Details
Main Author: Amaral, Luis (author)
Other Authors: Jamin, Christine (author), Senos, Ana M. R. (author), Vilarinho, Paula M. (author), Guillon, Olivier (author)
Format: article
Language:eng
Published: 1000
Subjects:
MICROWAVE DIELECTRIC-PROPERTIES
MICROSTRUCTURE
CERAMICS
ALUMINA
LAMINATE
GROWTH
Online Access:http://hdl.handle.net/10773/20216
Country:Portugal
Oai:oai:ria.ua.pt:10773/20216
Description
Summary: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. (C) 2013 Elsevier Ltd. All rights reserved.

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