University of Oulu

Mikko Nelo, Jani Peräntie, Tuomo Siponkoski, Jari Juuti, Heli Jantunen, Upside-down composites: Electroceramics without sintering, Applied Materials Today, Volume 15, 2019, Pages 83-86, ISSN 2352-9407,

Upside-down composites : electroceramics without sintering

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Author: Nelo, Mikko1; Peräntie, Jani2; Siponkoski, Tuomo2;
Organizations: 1Microelectronics Research Unit, University of Oulu, P.O. Box 4500, FI-90014, Finland
2Microelectronics Research Unit, University of Oulu, P.O. Box 4500, FI-90014, Finlanda
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.5 MB)
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Language: English
Published: Elsevier, 2019
Publish Date: 2019-02-07


In this work, all-ceramic barium strontium titanate (BST) composite is fabricated for the first time at room temperature without sintering, showing a clear phase transformation behavior at Curie temperature and excellent electrical properties. The samples fabricated using pre-treated BST particles with a ceramic binder and selection of the overall particle size showed the relative permittivity up to 200 and loss tangent of 7 × 10⁻³. Although the technology introduced here is demonstrated to feasible for BST, it is generic and usable also for other inorganic materials. Thus, it can expedite and pave the way for versatile applications of other ceramic based composites with, for instance, piezoelectric, ferroelectric, ferromagnetic or ferrite performance used in a large variety of devices for telecommunications, sensors and actuators.

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Series: Applied materials today
ISSN: 2352-9407
ISSN-E: 2352-9415
ISSN-L: 2352-9407
Volume: 15
Pages: 83 - 86
DOI: 10.1016/j.apmt.2018.12.021
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The work leading to these results has received funding from the European Research Council (ERC) under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement No. 291132. Authors J.J. and J.P. acknowledge the funding by the Academy of Finland (grant agreements No. 267573 and 298409).
EU Grant Number: (291132) ULTIMATE CERAMICS - Printed Electroceramics with Ultimate Compositions
Academy of Finland Grant Number: 267573
Detailed Information: 267573 (Academy of Finland Funding decision)
298409 (Academy of Finland Funding decision)
Copyright information: © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (