Constrained sintering of BaLa4Ti4O15 thick films: Pore and grain anisotropy
authors Amaral, L; Jamin, C; Senos, AMR; Vilarinho, PM; Guillon, O
nationality International
journal JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
author keywords Thick films; Barium lanthanum titanate; Constrained sintering; Microstructural anisotropy; Grain growth
keywords MICROWAVE DIELECTRIC-PROPERTIES; MICROSTRUCTURE; CERAMICS; ALUMINA; LAMINATE; GROWTH
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. (C) 2013 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0955-2219
year published 2013
volume 33
issue 10
beginning page 1801
ending page 1808
digital object identifier (doi) 10.1016/j.jeurceramsoc.2013.01.031
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000319232700025
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journal impact factor 4.495
5 year journal impact factor 4.283
category normalized journal impact factor percentile 98.214
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