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Microwave dielectric characterisation of 3D-printed BaTiO3/ABS polymer composites

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Castles, Flynn, Isakov, Dmitry, Lui, A., Lei, Q., Dancer, Claire E. J., Wang, Y., Janurudin, J. M., Speller, Susie, Grovenor, Chris and Grant, Patrick S. (2016) Microwave dielectric characterisation of 3D-printed BaTiO3/ABS polymer composites. Scientific Reports, 6 . pp. 1-8. 22714. doi:10.1038/srep22714

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Official URL: http://dx.doi.org/10.1038/srep22714

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Abstract

3D printing is used extensively in product prototyping and continues to emerge as a viable option for the direct manufacture of final parts. It is known that dielectric materials with relatively high real permittivity—which are required in important technology sectors such as electronics and communications—may be 3D printed using a variety of techniques. Among these, the fused deposition of polymer composites is particularly straightforward but the range of dielectric permittivities available through commercial feedstock materials is limited. Here we report on the fabrication of a series of composites composed of various loadings of BaTiO3 microparticles in the polymer acrylonitrile butadiene styrene (ABS), which may be used with a commercial desktop 3D printer to produce printed parts containing user-defined regions with high permittivity. The microwave dielectric properties of printed parts with BaTiO3 loadings up to 70 wt% were characterised using a 15 GHz split post dielectric resonator and had real relative permittivities in the range 2.6–8.7 and loss tangents in the range 0.005–0.027. Permittivities were reproducible over the entire process, and matched those of bulk unprinted materials, to within ~1%, suggesting that the technique may be employed as a viable manufacturing process for dielectric composites.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH): Dielectrics, Three-dimensional printing
Journal or Publication Title: Scientific Reports
Publisher: Nature Publishing Group
ISSN: 2045-2322
Official Date: 4 March 2016
Dates:
DateEvent
4 March 2016Published
22 February 2016Accepted
14 December 2015Submitted
Volume: 6
Number of Pages: 8
Page Range: pp. 1-8
Article Number: 22714
DOI: 10.1038/srep22714
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Funder: Engineering and Physical Sciences Research Council (EPSRC)
Grant number: EP/I034548/1 (EPSRC)
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