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Air Breakdown Characteristics at High Altitudes
51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2013Present 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 +5 more
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Breakdown characteristics of water walled arcs
Journal of Physics D: Applied Physics, 1988The breakdown voltage of a high-pressure argon arc is increased by about 80% if water is present in the vessel, and is further increased if the discharge is forced close to the water surface by a metal conductor outside the arc chamber.
N Tait, F L Curzon, B Ahlborn
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MOSFET output characteristics after oxide breakdown
Microelectronic Engineering, 2007The performance of nMOSFETs after the gate oxide (SiO"2) dielectric breakdown (BD) has been studied. Different BD hardness, BD path locations along the channel and device aspect ratios have been considered. The results show that the BD of the gate oxide affects the overall I"D-V"D"S characteristics and that the BD impact depends on BD hardness and ...
R. Fernández +3 more
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Characteristics of laser induced gas breakdown
SPIE Proceedings, 2003We 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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Spectral characteristics of vortex breakdown flowfields
The Physics of Fluids, 1979Laser-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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Breakdown Characteristics of Moving Transformer Oil
IEEE Transactions on Power Apparatus and Systems, 1981As a result of investigating breakdown characteristics of moving oil, it has become clear that the breakdown voltage of ac and dc for moving oil is higher than that for stationary oil by 10-15 % at a moving velocity of 5 cm/s region; the former voltage becomes almost equal to the latter voltage in the region of 25 cm/s, and the former is reduced to ...
M. Ikeda +3 more
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ac breakdown characteristics of ceramic materials
Journal of Applied Physics, 1992ac breakdown properties of alumina, aluminum nitride, and glass ceramic (SiO2-Al2O3-MgO-TiO2) materials have been investigated. The breakdown strength of glass ceramics (∼65 kV/mm) was found to be higher than that of alumina (∼31 kV/mm) and aluminum nitride (∼16 kV/mm).
Israel O. Owate, Robert Freer
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Avalanche breakdown characteristics of punchthrough diodes
IEEE Transactions on Electron Devices, 1976A theoretical investigation of the avalanche breakdown characteristics of punchthrough diodes is carried out and a comparison made with the nonpunchthrough diodes. It is shown that the former have harder breakdown characteristics and a sharper knee for a given breakdown voltage.
A.B. Bhattacharyya, R. Kumar
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D.c. breakdown voltage characteristics in supercritical helium: breakdown in nonuniform fields
Cryogenics, 1986Abstract 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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32nd European Solid-State Device Research Conference, 2002
Identical breakdown-position dependence of normalized currents in nFETs with 2.4 nm gate oxide is observed after soft and hard breakdowns. This suggests that electron energy is conserved in the soft breakdown path. It is concluded that the observed soft breakdown is best modeled by a lowered oxide barrier in the breakdown conduction path.
KACZER B +4 more
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Identical breakdown-position dependence of normalized currents in nFETs with 2.4 nm gate oxide is observed after soft and hard breakdowns. This suggests that electron energy is conserved in the soft breakdown path. It is concluded that the observed soft breakdown is best modeled by a lowered oxide barrier in the breakdown conduction path.
KACZER B +4 more
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