Jan, SU, Zeb, A and Milne, SJ (2016) Dielectric ceramic with stable relative permittivity and low loss from −60 to 300 °C: A potential high temperature capacitor material. Journal of the European Ceramic Society, 36 (11). pp. 2713-2718. ISSN 0955-2219
Abstract
A new dielectric is described that meets the industry-standard lower limiting temperature of stable performance, -55 °C whilst extending the upper limit to 300 °C, with low dielectric loss, as required for the developing high-temperature electronics sector. The combined substitution of Sr and Bi ions on A sites, and Mg and Zr ions on B sites of the ABO3 perovskite solid solution (1-x)Ba0.6Sr0.4Zr0.2Ti0.8O3-xBi(Mg0.5Ti0.5)O3, flattens the εr -T response. At composition x = 0.2 the εr max temperature , and the associated tan δ dispersion peak, are each displaced to low temperatures such that a very favourable combination of low dielectric loss, tanδ < 0.015, from -60 to 310 °C and stable εr, ~ 500 ± 15 % from -70 to 300 °C (1 kHz data) is demonstrated. The x = 0.2 material achieves stable εr and low loss over the technologically important target temperature range, -55 to 300 °C
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, Elsevier. This is an author produced version of a paper published in Journal of the European Ceramic Society. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Diielectric; High Temperature Dielectric; Temperature stable dielectric |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Materials Research (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 May 2016 12:18 |
Last Modified: | 14 Apr 2017 03:38 |
Published Version: | http://dx.doi.org/10.1016/j.jeurceramsoc.2016.03.0... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.jeurceramsoc.2016.03.018 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99159 |