Evaluation of thermally sprayed oxide ceramics for insulation applications in electromobility
Authors: Prof. Dr.-Ing. Kirsten Bobzin, H. Heinemann, M. Sc. Elisa Olesch
DOI: https://doi.org/10.53192/TSB20220286
In this publication, the standard material for thermally sprayed electrical insulation coatings, aluminium oxide, is compared with mullite. Here, statements about the dielectric insulation properties of the two oxide ceramics in the thermally sprayed state are to be determined. Therefore, detached coatings are investigated by means of impedance measurements. Furthermore, images with the scanning electron microscope are used to compare the coating properties. Due to the increased electrical insulation properties of mullite, these coatings are further investigated with two sealer systems with regard to their insulation properties in the dry state as well as under the influence of air humidity.
Pages: 86 - 92
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