Results 271 to 280 of about 101,401 (310)

Prebreakdown current and dc breakdown strength of alumina-filled poly(ethylene-co-butyl acrylate) nanocomposites: Part I - breakdown strength

IEEE Transactions on Dielectrics and Electrical Insulation, 2014
Dielectric breakdown strength of poly (ethylene-co-butyl acrylate) (EBA) nanocomposites filled with spherical alumina particles was studied as a function of particle coating, moisture content and the effective specific surface area. Two kinds of alumina nanoparticles were used: NA (25 nm in diameter) or ND (45 nm in diameter). The particles were either
N. Jaeverberg, B. Venkatesulu, H. Edin, H. Hillborg   +3 more
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Breakdown strength of solid dielectrics in liquid nitrogen

IEEE Transactions on Dielectrics and Electrical Insulation, 2008
The objective of this research was to determine if a relationship could be found between dielectric strength and other properties of electrical insulating materials in the medium of liquid nitrogen on an empirical basis by using variables predicted by basic theory.
A. Masood, M.U. Zuberi, E. Husain
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The breakdown strength of two-layer dielectrics

11th International Symposium on High-Voltage Engineering (ISH 99), 1999
In paper the experimental results of the breakdown strength study for the two-layer dielectrics under the high electric field are given. The relation between the breakdown strength (E b ) and the boundary position (ξ) between layers for the two-layer dielectrics is anomalous in character.
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High voltage breakdown strength of rapid prototype materials

Digest of Technical Papers. PPC-2003. 14th IEEE International Pulsed Power Conference (IEEE Cat. No.03CH37472), 2004
We report measurements on the breakdown strength of plastics used in stereo lithography for rapid prototyping. Three epoxy-based photopolymer resins commonly used for stereo lithography were the focus of this work. Test samples were manufactured with an electrically smooth geometry to minimize field enhancements. The thickness of the stressed region in
F.E. Peterkin, J.L. Stevens, J.F. Sharrow, R.K. Pitman   +3 more
openaire   +1 more source

On the breakdown strength of silicone rubber

IEEE Transactions on Dielectrics and Electrical Insulation, 1994
Polymeric materials are an alternative to porcelain and glass regarding outdoor HV insulators. Silicone rubber appears to be one of the main candidates to replace porcelain and glass. Although much work has already been done regarding the behavior of complete polymeric insulators in the laboratory and in the field, relatively little is known with ...
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The impulse breakdown strength of pyrex glass

Physica, 1954
Synopsis The electric strengt of Pyrex glass has been measured at temperatures between −50°C and +100°C, using approximately linearly rising impulse voltages of durations between 30 secs and 1 × 10−5 sec. The values of electric strength obtained from successive comparable measurements were within ± 2½% of each other, which is within the limits of the
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Space charge and impulse breakdown strength in XLPE

Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM), 2002
The impulse breakdown strength of XLPE samples made of cable-grade material poled at 35 kV/mm DC has been found to be reduced by approximately 35 kV/mm for the aiding case compared to the opposing polarity. The internal space charge distribution is, however, found to be reasonably homogeneous and consisting of negative net charge, seemingly ...
R. Hegerberg, B. Sanden
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Electrical breakdown strength of polyolefin with controlled spherulites

[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials, 2002
Discusses methods for obtaining stable spherulite diameters of LLDPE (linear low-density polyethylene), and the electrical breakdown strength of LLDPE with controlled spherulites. Higher molecular weights are shown to cause lower-diameter spherulites. On the other hand, it seems that the spherulite diameter of an LLDPE whose MFR is from 0.35 to 20 is ...
T. Kubota, N. Yoshifuji, K. Yatsuka, M. Kuno, Y. Inoue, M. Watanabe   +5 more
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Electrical Breakdown Strength of Gamma-Irradiated Transformer Oils

Japanese Journal of Applied Physics, 2009
To understand the properties of gamma-irradiated transformer oils, we measured the electrical breakdown voltages and dissolved components in the oils after gamma irradiation. From the voltage measurements and an analysis of H2O concentration in the oils, we concluded that the voltages have a strong negative correlation with H2O concentration.
N.Tajima, K.Horioka
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Remarkable Dielectric Breakdown Strength of Printable Polyelectrolyte Photopolymer Complexes

ACS Macro Letters
Polymer-based dielectrics are struggling to keep pace with the increasing demands of modern electronics. This lag in dielectric performance has spurred significant interest in the production of advanced dielectrics via novel chemistries and processing techniques.
Ethan T. Iverson, Hudson Legendre, Jason P. Killgore, Jaime C. Grunlan, Thomas J. Kolibaba   +4 more
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