Abstract
Thermally sprayed ceramic coatings can be used as
electrical insulators for example in high temperature
applications (e.g. fuel cells) or in other demanding
conditions. In electrical insulation applications the
mostly used coating materials are aluminum oxide,
magnesium oxide and magnesium aluminate. In general, only
few reports of dielectric properties of thermally sprayed
ceramic coatings can be found in literature and further
analysis is thus needed. In addition, the measurement
methods and conditions in previous research are often not
fully documented, complicating the evaluation and
comparison of the properties of different coatings. The
aim of this paper was to characterize dielectric
properties of thermally sprayed ceramic spinel coating
sprayed with high-velocity oxygen fuel (HVOF) technique.
The studied dielectric properties are DC resistivity, DC
dielectric breakdown strength, as well as permittivity
and dielectric losses at different frequencies. All
measurements were made at temperature of 20 °C and at
relative humidity of 20 %. Dielectric properties and the
composition of coating material are presented and
analyzed.
Original language | English |
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Title of host publication | IEEE International Conference on Solid Dielectrics, ICSD 2013 |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
Pages | 389-392 |
ISBN (Electronic) | 978-1-4673-4461-6 |
ISBN (Print) | 978-1-4799-0807-3 |
DOIs | |
Publication status | Published - 2013 |
MoE publication type | A4 Article in a conference publication |
Event | 11th IEEE International Conference on Solid Dielectrics, ICSD 2013 - Bologna, Italy Duration: 30 Jun 2013 → 4 Jul 2013 |
Conference
Conference | 11th IEEE International Conference on Solid Dielectrics, ICSD 2013 |
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Abbreviated title | ICSD 2013 |
Country/Territory | Italy |
City | Bologna |
Period | 30/06/13 → 4/07/13 |
Keywords
- thermal spraying
- HVOF
- spinel
- coating
- resistivity
- dielectric spectroscopy
- dielectric breakdown strenght
- ProperTune