0000000000918492

AUTHOR

M. Sudol

showing 3 related works from this author

Effective conductivity in association with model structure and spatial inhomogeneity of polymer/carbon black composites

1996

The relationship between effective conductivity and cell structure of polyethylene/carbon composites as well as between effective conductivity and spatial distribution of carbon black are discussed. Following Yoshida's model both structures can, in a way, be said to be intermediate between the well known Maxwell-Garnett (MG) and Bruggeman (BR) limiting structures. Using TEM photographs on composites with various carbon blacks we have observed that the larger is Garncarek's inhomogeneity measure H of two-dimensional (2D) representative distribution of the carbon black, the smaller is the effective conductivity of the composite.

chemistry.chemical_classificationCondensed Matter - Materials ScienceMaterials scienceAcoustics and UltrasonicsComposite numberMaterials Science (cond-mat.mtrl-sci)FOS: Physical scienceschemistry.chemical_elementCarbon blackPolymerConductivityPolyethyleneCondensed Matter PhysicsSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryCarbon compositesCell structureComposite materialCarbonJournal of Physics D: Applied Physics
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The influence of molecular properties of additives on the stability of polyethylene in high electric fields

2003

Results are presented of studies of some molecular properties, i.e., dipole moment, total polarizability, and electronic polarizability, of dihalide and diamine derivatives of phenylene, p,p'-bi-phenylene and carbazole, which are used as additives for physical modification of polyethylene. The diffusion coefficients of these substances from a polyethylene matrix were estimated, and the stability of modified polyethylene in high electric fields (50 Hz) was found. The mechanism of action of high-voltage stabilizers in polyethylene was verified. >

Materials scienceCarbazolePhysics::Medical PhysicsPolyethyleneCondensed Matter::Soft Condensed MatterCondensed Matter::Materials Sciencechemistry.chemical_compoundDipolechemistryPolarizabilityPhenyleneDiamineElectric fieldPolymer chemistryPhysics::Atomic and Molecular ClustersPhysical chemistryPolarization (electrochemistry)Proceedings., Second International Conference on Properties and Applications of Dielectric Materials
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HADES experiment: di-lepton spectroscopy in p + p (2.2 GeV) and C+C (1 and 2 A GeV) collisions

2006

The HADES (High Acceptance Di-Electron Spectrometer) is a tool designed for lepton pair (e+e−) spectroscopy in pion, proton and heavy ion induced reactions in the 1–2AGeV energy range. One of the goals of the HADES experiment is to study in-medium modifications of hadron properties like effective masses, decay widths, electromagnetic form factors etc. Such effects can be probed with vector mesons ( ρ,ω,ɸ ) decaying into e+e− channel. The identification of vector mesons by means of a HADES spectrometer is based on invariant mass reconstruction of e+e− pairs. The combined information from all spectrometer sub-detectors is used to reconstruct the di-lepton signal. The recent results from 2.2Ge…

Di-lepton signalHADESMesonsSpectometer:FÍSICA [UNESCO]:FÍSICA::Nucleónica::Física de partículas [UNESCO]UNESCO::FÍSICAUNESCO::FÍSICA::Nucleónica::Física de partículasResultsHigh Energy Physics::ExperimentHadron PropertiesNuclear ExperimentHADES ; Hadron Properties ; Mesons ; Spectometer ; Di-lepton signal ; Results
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