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Title: Dielectric behaviours of multi-doped BaTiO3/epoxy composites
Authors: Kuo, D-H;Chang, C-C;Su, T-Y;Wang, W-K;Lin, B-Y
subject: Batio3;Composites;Dielectric Properties;Epoxy Materials
Year: 2001
Publisher: Elsevier Ltd. The Journal's web site is located at
Description: Multi-doped Ba TiO3/epoxy composites with the different types of treated ceramic powders are under investigation. The ceramic/epoxy composite with the 900°C treated ceramic powder has the highest dielectric constant, while lower values for those with powders treated at higher temperatures. Longer grinding of 20 h can have different heat-treated composites with similar dielectric constants. Dielectric properties of these composites were measured as functions of temperature and frequency. The increase of dielectric loss at frequencies above 1 MHz is due to the mechanism of domain-wall motion. The composite with semi-conducting fillers can have a limited increase in dielectric constant, but a large increase in dielectric loss. To have the best dielectric properties of the multi-doped BaTiO3/epoxy composite thick films for the printed wiring boards, the ceramic ratio need to be maximized without losing the board flexibility. A proper powder treatment is required to maximize the powder loading and performance. © 2001 Elsevier Science Ltd. All rights reserved.
Standard no: Journal of the European Ceramic Society, 2001, v. 21 n. 9, p. 1171-1177
Appears in Collections:Department of Anatomy

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