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The impact of 3D printing process parameters on the dielectric properties of high permittivity composites

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journal contribution
posted on 05.11.2019, 10:09 by Athanasios Goulas, Shiyu Zhang, Darren Cadman, Jan Järveläinen, Ville Mylläri, William Whittow, J. C. Vardaxoglou, Daniel Engstrom
Fused filament fabrication (FFF) is a well-known and greatly accessible additive manufacturing technology, that has found great use in the prototyping and manufacture of radiofrequency componentry, by using a range of composite thermoplastic materials that possess superior properties, when compared to standard materials for 3D printing. However, due to their nature and synthesis, they are often a great challenge to print successfully which in turn affects their microwave properties. Hence, determining the optimum printing strategy and settings is important to advance this area. The manufacturing study presented in this paper shows the impact of the main process parameters: printing speed, hatch spacing, layer height and material infill, during 3D printing on the relative permittivity (εr), and loss tangent (tanδ) of the resultant additively manufactured test samples. A combination of process parameters arising from this study, allowed successful 3D printing of test samples, that marked a relative permittivity of 9.06 ± 0.09 and dielectric loss of 0.032 ± 0.003.

Funding

EPSRC research grant SYMETA (EP/N010493/1)

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Designs

Volume

3

Issue

47

Publisher

MDPI

Version

VoR (Version of Record)

Rights holder

© the Authors

Publisher statement

This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

Acceptance date

04/11/2019

Publication date

2019-11-05

Copyright date

2019

ISSN

2411-9660

Language

en

Depositor

Dr Thanos Goulas. Deposit date: 4 November 2019

Article number

50

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