Corona resistance of epoxy nanocomposites: Experimental results and modeling

G. Iyer; R. S. Gorur; A. Krivda

doi:10.1109/TDEI.2012.6148509

Corona resistance of epoxy nanocomposites: Experimental results and modeling

G. Iyer, R. S. Gorur, A. Krivda

Electrical, Computer, and Energy Engineering, School of (IAFSE-ECEE)

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Epoxy composites with micro, nano and micro + nano silica fillers have been evaluated for their resistance to corona using point plane electrodes. The experiments were conducted for 500 h and the surface erosion was measured after every 100 h using a surface profilometer. The results show significant improvement in corona resistance of micro+nanofilled samples and nanofilled samples when compared with the microfilled samples and unfilled materials respectively. The results emphasize the importance of good filler dispersion. A model to map the degradation path in the filled and unfilled samples was developed using Dijkstra's shortest path algorithm. Reasonable agreement between the length of degradation path and the corona resistance in samples containing both micro + nanofillers has been demonstrated.

Original language	English (US)
Article number	6148509
Pages (from-to)	118-125
Number of pages	8
Journal	IEEE Transactions on Dielectrics and Electrical Insulation
Volume	19
Issue number	1
DOIs	https://doi.org/10.1109/TDEI.2012.6148509
State	Published - Feb 2012

Keywords

Corona resistance
Epoxy nanocomposites
Erosion depth
Microcomposites
Nanodielectrics
Nanofillers

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TDEI.2012.6148509

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title = "Corona resistance of epoxy nanocomposites: Experimental results and modeling",

abstract = "Epoxy composites with micro, nano and micro + nano silica fillers have been evaluated for their resistance to corona using point plane electrodes. The experiments were conducted for 500 h and the surface erosion was measured after every 100 h using a surface profilometer. The results show significant improvement in corona resistance of micro+nanofilled samples and nanofilled samples when compared with the microfilled samples and unfilled materials respectively. The results emphasize the importance of good filler dispersion. A model to map the degradation path in the filled and unfilled samples was developed using Dijkstra's shortest path algorithm. Reasonable agreement between the length of degradation path and the corona resistance in samples containing both micro + nanofillers has been demonstrated.",

keywords = "Corona resistance, Epoxy nanocomposites, Erosion depth, Microcomposites, Nanodielectrics, Nanofillers",

author = "G. Iyer and Gorur, {R. S.} and A. Krivda",

note = "Funding Information: Ganpathy Iyer wishes to acknowledge the IEEE Insulated Conductors Committee (ICC) and Mr. Bruce Bernstein for the stipend provided from the Dr. George H. Bahder award. This work was supported by the Power Systems Engineering Research Center (PSERC). The samples were provided by ABB Corporate Research, Switzerland, and were prepared by R. Hollertz. The authors would also like to thank Dr. Richert from the Department of Chemistry and Dr. D. Ferry and Dr. D. Schroder from the School of Electrical, Computer and Energy Engineering at Arizona State University for their technical assistance.",

year = "2012",

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doi = "10.1109/TDEI.2012.6148509",

language = "English (US)",

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N1 - Funding Information: Ganpathy Iyer wishes to acknowledge the IEEE Insulated Conductors Committee (ICC) and Mr. Bruce Bernstein for the stipend provided from the Dr. George H. Bahder award. This work was supported by the Power Systems Engineering Research Center (PSERC). The samples were provided by ABB Corporate Research, Switzerland, and were prepared by R. Hollertz. The authors would also like to thank Dr. Richert from the Department of Chemistry and Dr. D. Ferry and Dr. D. Schroder from the School of Electrical, Computer and Energy Engineering at Arizona State University for their technical assistance.

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N2 - Epoxy composites with micro, nano and micro + nano silica fillers have been evaluated for their resistance to corona using point plane electrodes. The experiments were conducted for 500 h and the surface erosion was measured after every 100 h using a surface profilometer. The results show significant improvement in corona resistance of micro+nanofilled samples and nanofilled samples when compared with the microfilled samples and unfilled materials respectively. The results emphasize the importance of good filler dispersion. A model to map the degradation path in the filled and unfilled samples was developed using Dijkstra's shortest path algorithm. Reasonable agreement between the length of degradation path and the corona resistance in samples containing both micro + nanofillers has been demonstrated.

AB - Epoxy composites with micro, nano and micro + nano silica fillers have been evaluated for their resistance to corona using point plane electrodes. The experiments were conducted for 500 h and the surface erosion was measured after every 100 h using a surface profilometer. The results show significant improvement in corona resistance of micro+nanofilled samples and nanofilled samples when compared with the microfilled samples and unfilled materials respectively. The results emphasize the importance of good filler dispersion. A model to map the degradation path in the filled and unfilled samples was developed using Dijkstra's shortest path algorithm. Reasonable agreement between the length of degradation path and the corona resistance in samples containing both micro + nanofillers has been demonstrated.

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KW - Epoxy nanocomposites

KW - Erosion depth

KW - Microcomposites

KW - Nanodielectrics

KW - Nanofillers

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Corona resistance of epoxy nanocomposites: Experimental results and modeling

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