Self-healing breakdown of metallized polypropylene

Sassoulas, Pierre-Olivier; Gosse, B.; Gosse, J.P.

doi:10.1109/icsd.2001.955622

Cited by 13 publications

(5 citation statements)

References 6 publications

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“…(2) is 25 mJ, and the energy used for decomposition of PP of the puncture area and vaporizing metal electrode is 1.2 mJ, which is less than 5% of the total self-healing energy. That means most of the self-healing energy is consumed by heating the surrounding PP films at the breakdown spot, this conclusion is consistent with the findings by P-O Sassoulas [32]. The melting point of polypropylene is only 165°C.…”

Section: Data and Analysissupporting

confidence: 91%

Temperature dependence of self-healing characteristics of metallized polypropylene film

et al. 2015

Microelectronics Reliability

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Section: Data and Analysissupporting

confidence: 91%

Temperature dependence of self-healing characteristics of metallized polypropylene film

et al. 2015

Microelectronics Reliability

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“…In the case of polymer films, which typically exhibit small-area breakdown strengths of ~400-700 V/µm, the maximum achievable energy density is limited by the low permittivity (for typical capacitor Manuscript received on 10 June 2014, accepted 11 January 2015. films, ε r =~2-4) [1,2]. In capacitor applications, the practical energy density is further reduced as a substantial safetymargin has to be kept from the short-term small-area breakdown strength of the polymer film due to the areadependence of the breakdown performance [3][4][5][6][7], film ageing processes [8,9] and limitations in the self-healing breakdown capability [10][11][12]. Other constraints such as device packaging reduce the final energy density even further [13].…”

Section: Introductionmentioning

confidence: 99%

Large-area dielectric breakdown performance of polymer films – Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocomposites

Rytöluoto

Lahti

Karttunen

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

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In this study, large-area dielectric breakdown performances of various bi-axially oriented polypropylene (BOPP)-silica nanocomposite films are studied by utilizing the self-healing multi-breakdown method presented in the Part I of this publication. In particular, the effects of silica filler content, pre-mixing method, co-stabilizer content and film processing on the large-area breakdown performance are analyzed. Nanostructural and film cross-sectional analyses are correlated to the breakdown responses. The optimum silica filler content is found to reside at the low fill fraction level (~1 wt-%) and automatic pre-mixing of the raw materials and the optimization of the orientation temperature are found to be preferable. The co-stabilizer Irgafos 168 is found to have a significant effect on the breakdown distribution homogeneity of the reference BOPP films. The breakdown response of the silica nanocomposites is found to be not only dependent on the active measurement area but also on the voltage ramp rate, indicating that the silica nanocomposites exhibit altered internal charge behavior under DC electric field. The area-and ramp-rate-dependence results exemplify the importance of careful breakdown strength evaluation of dielectric polymer nanocomposites. Above all, the results emphasize the fact that a thorough understanding and the optimization of the film processing parameters are crucial for achieving improved breakdown response in dielectric polymer nanocomposite films.

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“…45 It was found that the area cleared by a breakdown increased with breakdown voltage and was independent of the thickness of the polypropylene thin film. 45 The results shown in Fig. 9 show a similar trend and the increased slope with MnO 2 is attributed to the additional energy for clearing that is supplied by reduction reaction, which would increase the energy term and vaporization volume on the right side of Eq.…”

Section: Resultsmentioning

confidence: 98%

“…Sassoulas et al. measured the cleared electrode area on polypropylene thin films during the breakdown process and discussed its relation to the breakdown voltage . It was found that the area cleared by a breakdown increased with breakdown voltage and was independent of the thickness of the polypropylene thin film .…”

Section: Resultsmentioning

confidence: 99%

MnO₂ Thin Film Electrodes for Enhanced Reliability of Thin Glass Capacitors

2015

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Many dielectric thin films for energy storage capacitors fail by thermal breakdown events under high-field drive conditions. The lifetime of the device can be improved under conditions where the current path within the defect regions in dielectrics is eliminated. Self-healing electrodes were developed by depositing a manganese dioxide (MnO 2 ) thin film between the glass substrate and an aluminum film. For this purpose, thin films of MnO 2 on boroaluminosilicate glass were fabricated via chemical solution deposition and heat-treated at temperatures in the range 500°C-900°C. The a-MnO 2 structure was stabilized by Ba 2+ insertion to form the hollandite structure. The phase transition temperature of a-MnO 2 to Mn 2 O 3 is strongly dependent on the Ba concentration, with transition temperatures of 600°C and 675°C with Ba concentrations of [Ba]/[Mn] = 0.04 and 0.1, respectively. The electrical resistivity increased from 4.5 ΩÁcm for MnO 2 to 10 5 ΩÁcm for Mn 2 O 3 . Both dielectric breakdown strength and the associated cleared aluminum electrode area increased with an MnO 2 interlayer between Al electrodes and the borosilicate glass. The enhancement in dielectric strength was related with self-healing. The associated redox reaction between MnO 2 and Mn 2 O 3 was also proved by RAMAN spectroscopy following dielectric breakdown.

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Self-healing breakdown of metallized polypropylene

Cited by 13 publications

References 6 publications

Temperature dependence of self-healing characteristics of metallized polypropylene film

Temperature dependence of self-healing characteristics of metallized polypropylene film

Large-area dielectric breakdown performance of polymer films – Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocomposites

MnO₂ Thin Film Electrodes for Enhanced Reliability of Thin Glass Capacitors

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Self-healing breakdown of metallized polypropylene

Cited by 13 publications

References 6 publications

Temperature dependence of self-healing characteristics of metallized polypropylene film

Temperature dependence of self-healing characteristics of metallized polypropylene film

Large-area dielectric breakdown performance of polymer films – Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocomposites

MnO2 Thin Film Electrodes for Enhanced Reliability of Thin Glass Capacitors

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MnO₂ Thin Film Electrodes for Enhanced Reliability of Thin Glass Capacitors