Journal
MATERIALS LETTERS
Volume 65, Issue 6, Pages 978-981Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2010.12.043
Keywords
BaTiO3; SrTiO3; Dielectric properties; Energy storage
Funding
- Office of Naval Research [N000-14-05-1-0541]
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BaTiO3-SrTiO3 (BST) thick films (-250-390 mu m) with layered structures were fabricated by tape-casting and lamination process. Layered composites with various Ba/Sr ratios were obtained by lamination of BaTiO3 (BT) and SrTiO3 (ST) tapes in different spatial configurations (2-2). As-prepared BST ceramics showed much improved sinterability over the laminates of pure BT or pure ST tapes. Dielectric properties of materials were measured in the temperature range of 25 degrees C to 200 degrees C. The method of utilizing of layered structures offered flexibility to maximize the energy storage capability at specific operating conditions: (temperature and electric field) by tailoring the dielectric properties through varying the spatial configurations of BT and ST films. (C) 2011 Elsevier B.V. All rights reserved.
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