Janne Ruokolainen、Glenn H. Fredrickson、Edward J. Krämer 等 6 位作者2002-11-07Macromolecules
We investigate the effects of polyethylene cylinder domain orientation and thermal history on the micromechanical deformation and fracture properties of poly(cyclohexylethylene)−poly(ethylene)−poly(cyclohexylethylene) (CEC) triblock copolymer where the poly(cyclohexylethylene) (PCHE) blocks are unentangled. The proper…
Corrosion Behavior and InhibitionPolymer crystallization and propertiesBlock Copolymer Self-Assembly
R. Tsu、J. W. McPherson、W.R. McKee2002-11-07OpenAlex
Leakage and breakdown characteristics of low-k dielectrics are becoming increasingly important reliability issues for interconnects as they are scaled to 0.18 um and below. Several of the low-k dielectrics, integrated into a dual-damascene Cu process flow, are quite leaky and have difficulty in meeting a leakage spec…
Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability
Y. Sekii、N. Momose、K. Takatori 等 4 位作者2002-11-07OpenAlex
To study the water tree suppression in polymeric insulating materials, experiments were conducted on LDPE and XLPE specimens applying voltage stress of 3kV/mm for up to 1000 hours in copper sulfate solution and sodium chloride solution. The results demonstrate that XLPE specimens containing lipophilic surfactants with…
High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and Insulation
Daniel P. Kramer、J.R. McDougal、B. A. Booher 等 6 位作者2002-11-07OpenAlex
A development study has been completed on autogenous electron beam and Nd-YAG laser welding of niobium-1% zirconium (Nb-1% Zr) and molybdenum-44.5% rhenium (Mo-44.5% Re) thin sheet material. Specimens 0.5 mm thick were welded using both processes in a butt joint configuration. Mechanical tests were performed on welded…
Metal and Thin Film MechanicsFusion materials and technologiesNuclear Materials and Properties
T. Sörqvist2002-11-07OpenAlex
This paper presents results from a long-term study of two different room temperature vulcanizing (RTV) silicone rubber (SIR) coatings. The RTVs were applied to identical longrod porcelain insulators and energized under natural outdoor conditions for a period of about nine years. In addition to being energized with AC…
High voltage insulation and dielectric phenomenaAerogels and thermal insulationSmart Materials for Construction
Suha SHIHAB、K. L. Wong2002-11-072000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)
This paper describes a new technique for detecting faulty components such as cracked insulators and faulty surge arresters on power lines. The technique utilises radio frequency (RF) pulses emitted from the faulty components as the monitoring parameter. The high frequency radio pulses are captured using a biconical an…
High voltage insulation and dielectric phenomenaPower Systems Fault DetectionElectrical Fault Detection and Protection
Yoshikazu Hoshina、Motoyuki Sato、Hiroshi Murase 等 5 位作者2002-11-072000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)
Investigations of the dielectric properties of SF/sub 6/, N/sub 2/ and mixtures have been carried out using a full scale model of a gas-insulated busbar (GIB). The breakdown characteristics under clean conditions are similar to those in a uniform field gas gap. The breakdown voltage is the maximum in SF/sub 6/ and the…
High voltage insulation and dielectric phenomenaElectromagnetic Compatibility and Noise SuppressionCopper Interconnects and Reliability
Suwarno Suwarno2002-11-07OpenAlex
Partial discharges (PD) in void and electrical treeing were measured by using a computer aided measurement system. The results showed that the magnitude and the occurrence of PDs in voids were different from that of treeing PDs. Pulse-sequence-analysis and the PD distribution revealed the role of the instantaneous and…
High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationWater Quality Monitoring Technologies
A.T. Bulinski、E. So、S.S. Bamji2002-11-072000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)
The 60 Hz insulation loss current measurements in high voltage cable insulation containing water trees are described. To isolate the small insulation loss current from the significantly larger, quadrature (capacitive) current, a current-comparator-based high voltage capacitance bridge was used. It is shown that water…
High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationElectrical Fault Detection and Protection
F. Guastavino、G. Coletti、B. Cerutti 等 4 位作者2002-11-07OpenAlex
Pre-selection tests on enameled copper wires to be adopted for windings of inverter driven rotating machines are generally performed applying quasi-square wave voltages to suitable specimens. This work experimentally investigates the influence of the factor "dv/dt" (or of the rise-time) characteristic of such quasi-sq…
Silicon Carbide Semiconductor TechnologiesHigh voltage insulation and dielectric phenomenaElectromagnetic Compatibility and Noise Suppression
Chang‐Su Huh、Bok‐Hee Youn、Sangyoub Lee2002-11-07OpenAlex
We investigate the aging by UV radiation of silicone rubber used for outdoor insulators. Results from the measurement of surface potential decay by corona charging and of contact angle show a change of surface electrostatic properties and a slow decrease of contact angle under UV irradiation. For changes in the micro-…
Surface Modification and SuperhydrophobicityHigh voltage insulation and dielectric phenomenaAnalytical Chemistry and Sensors
A. Cavallini、Davide Fabiani、Giovanni Mazzanti 等 4 位作者2002-11-07OpenAlex
Nowadays the increase of polluting loads in electrical networks affects supply voltage sinusoidality more significantly than in the past. Voltage distortion can decrease reliability of electrical devices, that is, increase their failure rate. This paper deals with the effect on aging acceleration due to harmonics for…
High voltage insulation and dielectric phenomenaConcrete Corrosion and DurabilitySmart Materials for Construction
Adam Steltzner、A.K. Nasif2002-11-07OpenAlex
Comets, asteroids and other small bodies found in the solar system do not possess enough gravity to ensure spacecraft contact forces sufficient to allow many types of in situ science, such as core or surface sampling. Some method of providing sufficient contact force must be used for successful in situ exploration. A…
High-pressure geophysics and materialsHigh-Velocity Impact and Material BehaviorElectromagnetic Launch and Propulsion Technology
Noriyuki Shimizu、Yukio Shibata、Kimihiko Ito 等 5 位作者2002-11-07OpenAlex
Effect of degassing treatment on tree initiation voltage was investigated in XLPE specimen with semiconducting electrode at 50/spl deg/C and room temperature. 1. Degassing treatment drastically increases tree initiation voltage of XLPE at room temperature. The same result is obtained in LDPE. 2. However, degassing tre…
Advanced Sensor and Energy Harvesting MaterialsHigh voltage insulation and dielectric phenomenaSmart Materials for Construction
Thomas Hinterholzer、Wolfram Boeck2002-11-07OpenAlex
Corona-stabilization in SF/sub 6/-insulated systems is a known phenomenon, but up to now not fully understood. In case of slow-rising impulse voltage stress, a stabilization mechanism, mainly depending on the steepness of the applied test voltage, occurs. Essential for the phenomenon is a space-charge accumulation in…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaElectrostatic Discharge in Electronics
M.S. Mashikian2002-11-072000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)
The competitive environment created by free market electricity supply requires that electric utilities reduce capital and operating expenses and, at the same time, increase the overall quality of electricity. Underground distribution cable systems are particularly sensitive to this need, which can be effectively addre…
High voltage insulation and dielectric phenomenaWater Systems and OptimizationInfrastructure Maintenance and Monitoring
Ampol Tungkanawanich、Zen‐Ichiro Kawasaki、Joji Abe 等 4 位作者2002-11-072000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)
This paper presents a new system designed for detecting the pulse-train electromagnetic waves emitted from partial discharge. The authors utilize a VHF wideband antenna array as electromagnetic sensors and calculate the time delay between them in order to locate partial discharge in 3 dimensions. The standard cross co…
High voltage insulation and dielectric phenomenaLightning and Electromagnetic PhenomenaElectrostatic Discharge in Electronics
Gian Carlo Montanari、Giovanni Mazzanti、F. Palmieri 等 4 位作者2002-11-07OpenAlex
This paper presents an approach having the purpose of obtaining charge mobility estimation from space charge measurement data, precisely from the depolarization (volt-off) characteristics provided by the pulsed electro-acoustic technique (PEA). General and approximate expressions are given for mobility calculation. Th…
High voltage insulation and dielectric phenomenaElectrostatic Discharge in ElectronicsElectrical Fault Detection and Protection
Núria López、Juan Carlos Paniagua、Francesc Illas2002-11-07The Journal of Chemical Physics
We have analyzed the relative energy of nonmagnetic and magnetic low-lying electronic states of Ni atoms adsorbed on regular and defective sites of the MgO(001) surface. To this end cluster and periodic surface models are used within density functional theory. For Ni atoms adsorbed on oxygen vacancies at low coverage,…
ZnO doping and propertiesCatalytic Processes in Materials ScienceElectronic and Structural Properties of Oxides
S. Sharma、Lars Nordström、B. Johansson2002-11-07Physical review. B, Condensed matter
The quasi-two-dimensional transition-metal dichalcogenide compounds $1T\ensuremath{-}\mathrm{Ta}{X}_{2}(X=\mathrm{S},\mathrm{Se},\mathrm{Te})$ at low temperature form charge-density waves (CDW), manifested in periodic lattice distortions. In order to investigate the effect of the CDW on the Fermi surface (FS) of these…
2D Materials and ApplicationsOrganic and Molecular Conductors ResearchHeusler alloys: electronic and magnetic properties