DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites

Ilkka Rytöluoto; Mikael Ritamäki; Kari Lahti; Mikko Karttunen

doi:10.1109/ICPADM.2015.7295317

DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites

Ilkka Rytöluoto, Mikael Ritamäki, Kari Lahti, Mikko Karttunen

BA3609 Materials processing and circular solutions

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

5 Citations (Scopus)

Abstract

The effect of voltage ramp rate on the short-term dielectric breakdown strength of polymer nanocomposites is not well-documented. In this paper, the effect of DC field ramp rate on the large-area breakdown performance of melt-extruded bi-axially oriented polypropylene (BOPP) films incorporating 4.5 wt-% of nano-silica is studied. By utilizing a self-healing multi-breakdown measurement method with a variable DC voltage ramp rate, a statistically large amount of breakdown data was obtained from a large total sample film area as a function of DC field ramp rate (0.1-50 Vs^-1μm^-1)). With a decreasing ramp rate, Weibull statistical analysis of the breakdown data suggests a systematically decreasing trend in the breakdown strength (Weibull α) and an increase in the Weibull shape parameter of time (>1) for the nanocomposite. The observed behavior is speculated to be attributable to highly altered internal charge dynamics of the silica-BOPP nanocomposite. The results exemplify the importance of careful breakdown strength assessment when dielectric films of more complex internal structure are studied.

Original language	English
Title of host publication	Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	496-499
ISBN (Electronic)	978-1-4799-8903-4, 978-1-4799-8902-7
DOIs	https://doi.org/10.1109/ICPADM.2015.7295317
Publication status	Published - 15 Oct 2015
MoE publication type	A4 Article in a conference publication
Event	IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015 - Sydney, Australia Duration: 19 Jul 2015 → 22 Jul 2015 Conference number: 11

Conference

Conference	IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015
Abbreviated title	ICPADM 2015
Country	Australia
City	Sydney
Period	19/07/15 → 22/07/15

Keywords

BOPP
silica
nanocomposite
breakdown
ramp rate dependence
weibull

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Rytöluoto, I., Ritamäki, M., Lahti, K., & Karttunen, M. (2015). DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites. In Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the (pp. 496-499). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ICPADM.2015.7295317

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abstract = "The effect of voltage ramp rate on the short-term dielectric breakdown strength of polymer nanocomposites is not well-documented. In this paper, the effect of DC field ramp rate on the large-area breakdown performance of melt-extruded bi-axially oriented polypropylene (BOPP) films incorporating 4.5 wt-% of nano-silica is studied. By utilizing a self-healing multi-breakdown measurement method with a variable DC voltage ramp rate, a statistically large amount of breakdown data was obtained from a large total sample film area as a function of DC field ramp rate (0.1-50 Vs-1μm-1)). With a decreasing ramp rate, Weibull statistical analysis of the breakdown data suggests a systematically decreasing trend in the breakdown strength (Weibull α) and an increase in the Weibull shape parameter of time (>1) for the nanocomposite. The observed behavior is speculated to be attributable to highly altered internal charge dynamics of the silica-BOPP nanocomposite. The results exemplify the importance of careful breakdown strength assessment when dielectric films of more complex internal structure are studied.",

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author = "Ilkka Ryt{\"o}luoto and Mikael Ritam{\"a}ki and Kari Lahti and Mikko Karttunen",

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Rytöluoto, I, Ritamäki, M, Lahti, K & Karttunen, M 2015, DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites. in Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the. IEEE Institute of Electrical and Electronic Engineers, pp. 496-499, IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, 19/07/15. https://doi.org/10.1109/ICPADM.2015.7295317

DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites. / Rytöluoto, Ilkka; Ritamäki, Mikael; Lahti, Kari; Karttunen, Mikko.

Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the. IEEE Institute of Electrical and Electronic Engineers, 2015. p. 496-499.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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N2 - The effect of voltage ramp rate on the short-term dielectric breakdown strength of polymer nanocomposites is not well-documented. In this paper, the effect of DC field ramp rate on the large-area breakdown performance of melt-extruded bi-axially oriented polypropylene (BOPP) films incorporating 4.5 wt-% of nano-silica is studied. By utilizing a self-healing multi-breakdown measurement method with a variable DC voltage ramp rate, a statistically large amount of breakdown data was obtained from a large total sample film area as a function of DC field ramp rate (0.1-50 Vs-1μm-1)). With a decreasing ramp rate, Weibull statistical analysis of the breakdown data suggests a systematically decreasing trend in the breakdown strength (Weibull α) and an increase in the Weibull shape parameter of time (>1) for the nanocomposite. The observed behavior is speculated to be attributable to highly altered internal charge dynamics of the silica-BOPP nanocomposite. The results exemplify the importance of careful breakdown strength assessment when dielectric films of more complex internal structure are studied.

AB - The effect of voltage ramp rate on the short-term dielectric breakdown strength of polymer nanocomposites is not well-documented. In this paper, the effect of DC field ramp rate on the large-area breakdown performance of melt-extruded bi-axially oriented polypropylene (BOPP) films incorporating 4.5 wt-% of nano-silica is studied. By utilizing a self-healing multi-breakdown measurement method with a variable DC voltage ramp rate, a statistically large amount of breakdown data was obtained from a large total sample film area as a function of DC field ramp rate (0.1-50 Vs-1μm-1)). With a decreasing ramp rate, Weibull statistical analysis of the breakdown data suggests a systematically decreasing trend in the breakdown strength (Weibull α) and an increase in the Weibull shape parameter of time (>1) for the nanocomposite. The observed behavior is speculated to be attributable to highly altered internal charge dynamics of the silica-BOPP nanocomposite. The results exemplify the importance of careful breakdown strength assessment when dielectric films of more complex internal structure are studied.

KW - BOPP

KW - silica

KW - nanocomposite

KW - breakdown

KW - ramp rate dependence

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BT - Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the

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ER -