Results 251 to 260 of about 6,030,214 (300)

A study on the breakdown characteristics of the fluorocarbon

Conference Record of the 1996 IEEE International Symposium on Electrical Insulation, 2002
In this paper, we investigated physical properties and electrical characteristics of the fluorocarbon used as coolants for large power gas-insulated transformers. Volume resistivity of the fluorocarbon is /spl rho/=1.87/spl times/10/sup 15/ [/spl Omega//spl middot/cm] at 1 atm, 27/spl deg/C.
null Chang-Su Huh, null Jae-Bok Lee
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Breakdown characteristics of interconnect dielectrics

2005 IEEE International Reliability Physics Symposium, 2005. Proceedings. 43rd Annual., 2005
The shrinking of line-to-line spacing in interconnect systems for advanced IC technology and the use of new lower dielectric constant materials create the need for tools to evaluate the interconnect dielectric reliability. A multi-temperature, dual ramp-rate voltage-ramp to breakdown methodology is presented and used here to extract important ...
G.S. Hasse, E.T. Ogawa, J.W. McPherson
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Breakdown Characteristics of Porous Metals

Japanese Journal of Applied Physics, 2004
We have investigated the breakdown characteristics of porous metals as discharge electrodes, for applications to multichannel arc gaps. We examined a single-needle/plane gap as a nonuniform electric field gap and a sphere/plane gap as a uniform one using a mirror-finished brass plate and a porous metal as plane electrodes.
Seizo Furuya, Saburo Takano, Juichi Irisawa   +2 more
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Characteristics of gas breakdown in hollow-core fibers

SPIE Proceedings, 2008
We succeeded in obtaining gas discharge in 250-, 150-, and 50-mum inner-diameter (i.d.) hollow-core fibers (HCFs) by using longitudinal direct current excitation. Stable glow discharges of at least several minutes were observed for these HCFs. A flash glow was also observed for an HCF with an i.d. of ~20 mum. Breakdown of helium and argon gases in a 26.
X. Shi, X. B. Wang, W. Jin, M. S. Demokan   +3 more
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Self-healing breakdown characteristics of polyimide thin films-effect of ambient gas on breakdown characteristics

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2002
We have been studying the breakdown characteristics of polyimide (PI) thin films to try and take advantage of self-healing breakdown. This paper focuses on the effect of ambient gas (SF/sub 6/, N/sub 2/, O/sub 2/ and dry air) on breakdown characteristics of PI thin films.
Y. Muramoto, M. Nagao, M. Kosaki
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The Characteristics of Systems Breakdown

2016
This chapter leverages the conceptual framework for how systems form to explain the many ways systems break down. These ways are organized into major methods, from violent destruction to intentional retirement, and specific breakdown mechanisms within each method.
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D.c. breakdown voltage characteristics in supercritical helium: breakdown in nonuniform fields

Cryogenics, 1986
Abstract This Paper describes the results of an experimental study on the d.c. breakdown voltage characteristic of supercritical helium under a non-uniform electric field. The study was carried out to further the development of superconducting magnets cooled by supercritical helium.
S. Nakayama, D. Ito
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Characteristics of laser induced gas breakdown

SPIE Proceedings, 2003
We report characteristics of laser induced gas breakdown by changing wavelengths, gas media as well as controlling energies. Pulsed YAG laser beam was focused into the gas chamber in order to study breakdown thresholds and laser transmission through produced plasmas.
Kensuki Murai, Masahiro Tsukamoto
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Air Breakdown Characteristics at High Altitudes

51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013
Present investigations have been devoted to analysis of electron ionization and elimination processes at early stages of electric discharge development at altitudes 0$100 km. In the report we consider processes of ionization in the external field and due to background ionization, as well as of attachment, detachment of electrons in collisions with ...
Vladimir Bychkov, Nikolai Ardelyan, Konstantin Kosmachevskii, Sergey Volkov, Aleksander Kuranov, Aleksander Savarovsky   +5 more
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Spectral characteristics of vortex breakdown flowfields

The Physics of Fluids, 1979
Laser-Doppler anemometer measurements upstream and in the wakes of vortex breakdowns of bubble and spiral types are described. Spectral analysis of the data indicates prominent oscillations in the wakes at less than 10 Hz. These oscillations correspond closely to theoretical predictions of the linearly most unstable normal modes of the time-averaged ...
A. K. Garg, S. Leibovich
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