Changes in permittivity of syntactic foam at low temperatures and frequencies
Changes in permittivity of syntactic foam at low temperatures and frequencies
Syntactic foam is a lightweight composite in which hollow particles - here hollow glass spheres of micrometer size - are used as filing material in a polymer resin matrix. The complex permittivity was measured of specimens of syntactic foam to be used as high performance insulation for lightweight High-Voltage DC power supplies. The overall losses of the syntactic foam were higher than the losses of the base material, which might be due to the increased dc conductivity, the interfacial polarization at the interfaces between glass and epoxy, or both. For high temperatures - above +60°C - the glass transition temperature tG also plays it's part. In previous work dielectric spectroscopy results in the temperature range from roughly -120°C to +40°C showed anomalous behavior, tentatively explained as being caused by the phase transition of SO2. This work focuses on the difference between different filler types and their influence on the dielectric spectrum.
Complex permittivity, Dielectric spectroscopy, Polarization, Syntactic foam
Andritsch, T.
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Lunding, A.
482a5cbf-4897-4c49-ae6b-c8100887edc2
Morshuis, Peter H.F.
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Negle, H.
89fe898a-82eb-4479-af06-588d5c10b4bc
Smit, J.J.
07c57924-c2e6-48b4-958e-41047e0369b8
2008
Andritsch, T.
8681e640-e584-424e-a1f1-0d8b713de01c
Lunding, A.
482a5cbf-4897-4c49-ae6b-c8100887edc2
Morshuis, Peter H.F.
52ee8690-43df-4325-b9df-3b02a8deed87
Negle, H.
89fe898a-82eb-4479-af06-588d5c10b4bc
Smit, J.J.
07c57924-c2e6-48b4-958e-41047e0369b8
Andritsch, T., Lunding, A., Morshuis, Peter H.F., Negle, H. and Smit, J.J.
(2008)
Changes in permittivity of syntactic foam at low temperatures and frequencies.
In Proceedings 2008 - 4th IEEE BeNeLux Young Researchers Symposium in Electrical Power Engineering.
IEEE..
Record type:
Conference or Workshop Item
(Paper)
Abstract
Syntactic foam is a lightweight composite in which hollow particles - here hollow glass spheres of micrometer size - are used as filing material in a polymer resin matrix. The complex permittivity was measured of specimens of syntactic foam to be used as high performance insulation for lightweight High-Voltage DC power supplies. The overall losses of the syntactic foam were higher than the losses of the base material, which might be due to the increased dc conductivity, the interfacial polarization at the interfaces between glass and epoxy, or both. For high temperatures - above +60°C - the glass transition temperature tG also plays it's part. In previous work dielectric spectroscopy results in the temperature range from roughly -120°C to +40°C showed anomalous behavior, tentatively explained as being caused by the phase transition of SO2. This work focuses on the difference between different filler types and their influence on the dielectric spectrum.
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Published date: 2008
Venue - Dates:
4th IEEE BeNeLux Young Researchers Symposium in Electrical Power Engineering, 2008, , Eindhoven, Netherlands, 2008-02-07 - 2008-02-08
Keywords:
Complex permittivity, Dielectric spectroscopy, Polarization, Syntactic foam
Identifiers
Local EPrints ID: 509946
URI: http://eprints.soton.ac.uk/id/eprint/509946
PURE UUID: d09bd6d4-915e-4e8a-8dcb-631459609e9b
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Date deposited: 11 Mar 2026 17:45
Last modified: 12 Mar 2026 02:46
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Contributors
Author:
T. Andritsch
Author:
A. Lunding
Author:
Peter H.F. Morshuis
Author:
H. Negle
Author:
J.J. Smit
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