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

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/Territory	Australia
City	Sydney
Period	19/07/15 → 22/07/15

Keywords

BOPP
silica
nanocomposite
breakdown
ramp rate dependence
weibull

Access to Document

10.1109/ICPADM.2015.7295317

Cite this

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title = "DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites",

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.",

keywords = "BOPP, silica, nanocomposite, breakdown, ramp rate dependence, weibull",

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

year = "2015",

month = oct,

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doi = "10.1109/ICPADM.2015.7295317",

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booktitle = "Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

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note = "IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, ICPADM 2015 ; Conference date: 19-07-2015 Through 22-07-2015",

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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, Tasmania, 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

TY - GEN

T1 - DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites

AU - Rytöluoto, Ilkka

AU - Ritamäki, Mikael

AU - Lahti, Kari

AU - Karttunen, Mikko

N1 - Conference code: 11

PY - 2015/10/15

Y1 - 2015/10/15

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

KW - weibull

U2 - 10.1109/ICPADM.2015.7295317

DO - 10.1109/ICPADM.2015.7295317

M3 - Conference article in proceedings

SP - 496

EP - 499

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

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015

Y2 - 19 July 2015 through 22 July 2015

ER -

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

Abstract

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Keywords

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