Results 321 to 330 of about 4,428,606 (372)
Some of the next articles are maybe not open access.

Dielectric losses in ferroelectric ceramics produced by domain-wall motion

, 1978
The oscillation of domain walls caused by alternating fields is often thought to be the origin of dielectric losses. In this paper the physical nature of losses is explained by the damping of moving 90° domain walls.
J. Gentner   +3 more
semanticscholar   +1 more source

Calorimetric measurement of dielectric losses in solids

Electrical Engineering, 1936
A new transient calorimetric method for measurement of dielectric losses in solids at 10,000 volts and 1,000 kilocycles, is described in this paper and experimental data obtained by this method are presented. A steady-state method also is described and a direct comparison between the results obtained by the 2 methods is given.
S. C. Leonard, Hubert H. Race
openaire   +3 more sources

Dielectric Loss in Solids

1983
Efficient utilization of electrical insulating materials in electrical apparatus, devices, and cables requires knowledge of the dielectric loss behavior of materials under specific voltage, frequency, and temperature conditions. The appearance of significant dielectric losses may not only represent an unnecessary energy loss but could possibly lead to ...
openaire   +2 more sources

The Dielectric Losses in Impregnated Paper

Transactions of the American Institute of Electrical Engineers, 1933
Accurate measurements have been made of the electrical and other physical properties of 10 insulating oils, of a single grade of wood pulp paper, and of the paper when impregnated with each of the oils. Short time charge and discharge curves under continuous potential have thrown further light on the anomalous conduction as found in oils, and permit ...
openaire   +2 more sources

Dielectric Loss of Polymer Nanocomposites and How to Keep the Dielectric Loss Low

2016
An efficient utilization of polymer nanocomposites as dielectrics requires a comprehensive knowledge of the dielectric loss behavior in a time-varying field to avoid unnecessary energy loss and insulation failure due to thermal instability. It was indicated that losses from the molecular dipole relaxation and the charge carrier propagation predominate ...
Yanhui Huang, Xingyi Huang
openaire   +2 more sources

An integral equation method for the evaluation of conductor and dielectric losses in high-frequency interconnects

, 1989
An integral equation method is developed to solve for the complex propagation constant in multilayer planar structures with an arbitrary number of strip conductors on different levels.
T. E. V. Deventer   +2 more
semanticscholar   +1 more source

Piezoelectric properties and dielectric losses in PVDF-PMMA blends

, 1984
Piezoelectric properties and dielectric losses have been measured in polyvinylidene fluoride (PVDF)/polymethyl methacrylate (PMMA) blends to assess the value of this class of polymers as ultrasonic transducer materials.
C. Domenici   +3 more
semanticscholar   +1 more source

Anomalous dielectric losses in manganese doped lead-titanate-zirconate-ceramics

, 1978
Lead-titanate-zirconate ceramics doped with a Mn mole fraction of about 0.5 to 2% show anomalous dielectric losses. For samples with high dielectric losses an anomalous behavior of loss tangent measured during cycling a hysteresis loop is also found ...
W. Wersing
semanticscholar   +1 more source

Dielectric losses in As2Se3 glass

Solid State Communications, 1971
Abstract Dielectric loss measurements on As 2 Se 3 glass samples at room temperature in the frequency region 10 2 – 10 10 Hz show losses considerable smaller than published values. Definite evidence for localized states was not found. An upper limit of 2 × 10 18 /cm 3 eV for the density of states at the Fermi level follows from these experiments.
C. Crevecoeur, H.J. de Wit
openaire   +2 more sources

Microwave dielectric losses of n-alkanes

, 1982
Dielectric losses (tan δ=Iµ″/Iµ′) and permittivities (Iµ′) of the n-alkanes from C5 to C14 have been measured using waveguide bridges at 8.855 and 34.82 GHz and using helical cavities at 10.0 and 35.0 GHz.
N. Hermiz, J. Hasted, C. Rosenberg
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy