Protective Layer of Al2O3 Nanocomposites and Surface Composition after Electrical Stress

Meichsner C, Clark T, Groeppel P, Winter B, Butz B, Spiecker E (2015)

Publication Status: Published

Publication Type: Journal article

Publication year: 2015

Journal

IEEE Transactions on Dielectrics and Electrical Insulation Institute of Electrical and Electronics Engineers (IEEE)

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 22

Pages Range: 2944-2950

Journal Issue: 5

DOI: 10.1109/TDEI.2015.004939

Abstract

The performance of nanocomposites for improved resistance to electrical discharges has resulted in increased interest in nano-loaded thermosetting resins. First assessments of the performance of new systems can be obtained by a plate-electrode construction according to IEC(b). Epoxy resins loaded with different amounts of spherical alumina particles were tested following this procedure and parameters such as erosion depth and standardized volume analyzed. Transmission electron microscopy (TEM) and a three-dimensional (3D) reconstruction using electron tomography were used to determine the particle size distribution. TEM analysis after preparation of the eroded samples indicates the advantages and disadvantages of using alumina nanoparticles to improve the erosion resistance and showed a novel effect of the surface-grafted polysiloxanes. A comparison with conventional nano-silica-loaded resins reveals that the lower sintering tendency of Al2O3 is important.

Authors with CRIS profile

Christian Meichsner Naturwissenschaftliche Fakultät Timothy Clark Computer-Chemie-Centrum Benjamin Apeleo Zubiri Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Benjamin Butz Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

Siemens AG DE Germany (DE)

How to cite

APA:

Meichsner, C., Clark, T., Groeppel, P., Winter, B., Butz, B., & Spiecker, E. (2015). Protective Layer of Al2O3 Nanocomposites and Surface Composition after Electrical Stress. IEEE Transactions on Dielectrics and Electrical Insulation, 22(5), 2944-2950. https://dx.doi.org/10.1109/TDEI.2015.004939

MLA:

Meichsner, Christian, et al. "Protective Layer of Al2O3 Nanocomposites and Surface Composition after Electrical Stress." IEEE Transactions on Dielectrics and Electrical Insulation 22.5 (2015): 2944-2950.

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