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IEEE Transactions on Electrical Insulation

Issue 3 • Date June 1986

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Displaying Results 1 - 25 of 60
  • IEEE Transcations on Electrical Insulation

    Publication Year: 1986, Page(s): c1
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  • IEEE Dielectrics and Electrical Insulation Society

    Publication Year: 1986
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  • Table of contents

    Publication Year: 1986, Page(s):241 - 248
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  • 5th International Symposium on Electrets

    Publication Year: 1986, Page(s): 242
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  • Bernhard Gross: The Man and the Scientist

    Publication Year: 1986, Page(s):243 - 244
    Cited by:  Papers (3)
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    First Page of the Article
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  • Recollections

    Publication Year: 1986, Page(s):245 - 247
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    The Guest Editor kindly has suggested to me to record here some of my experiences since the time I entered University some 60 years ago. I am glad to accept this suggestion and on this occasion to mention some of the Institutions with which I was affiliated and to refer to some of the people who gave me the benefit of their guidance, friendship, and cooperation. View full abstract»

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  • Electret Research - Stages in Its Development

    Publication Year: 1986, Page(s):249 - 269
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3743 KB)

    Part 1 of this paper describes aspects of research on dielectrics and electrets carried out by the author over the last 50 years, in an attempt to show the systematics of its development and logical relation between its successive steps. Starting with dielectric absorption, it covers open-circuit behavior of dielectrics, thermally stimulated currents, Paschen breakdown and its effects on the perfo... View full abstract»

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  • 5th International Symposium on Electrets List of Scientific Participants

    Publication Year: 1986, Page(s):270 - 280
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  • Fast Neutrons: Generation, Dosimetry, and Applications

    Publication Year: 1986, Page(s):271 - 274
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (538 KB)

    We have designed a neutron source based on the 7Li(p,n)7 Bereaction. We bombard a thick metallic lithium target with protons from the Lowell type CN Van-de Graaff accelerator, and we obtain neutrons in the 5 keV to 3 MeV range with fluences up to 2×1014 neutrons/ (cm2h). We discuss source design and neutron dosimetry and we give examples of applications. View full abstract»

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  • An Experimentally Verified Current-Conservation Relation

    Publication Year: 1986, Page(s):275 - 279
    Cited by:  Papers (2)
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    We discuss a simple rule relating the corona current incident upon a polymer film in a vibrating corona triode to the discontinuity in the displacement current across the sample when the corona is turned off. By analyzing the experimental results, we show that this relation, equivalent to the equation of continuity , often seems violated; we prove that the limited resolution of voltmeters is respo... View full abstract»

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  • New Developments in Charging and Discharging of Polymers

    Publication Year: 1986, Page(s):281 - 288
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1316 KB)

    In this paper we present an overview of new developments in the field of charge storage and transport in insulating polymeric materials. We briefly scan new techniques for charging, such as the Constant-Current-Corona, a technique for positively charging with an electron beam, and a new technique to measure spatial charge distributions. In addition, we present results for the charging behavior and... View full abstract»

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  • Electrical Effects at Interfaces and Surfaces

    Publication Year: 1986, Page(s):289 - 295
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1244 KB)

    Interfaces and surfaces are always part of an electret structure and frequently, if not invariably, exert a controlling influence on their properties. Although classical featureless models ahve often been used to describe the behavior, especially where contact to metal electrodes is involved, the situation is much more complex. The nature of interfaces and contacts and of charge transfer across th... View full abstract»

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  • Issue Survey

    Publication Year: 1986, Page(s):296 - 426
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    Freely Available from IEEE
  • Hoppijg Transport and Relaxation Phenoiena in Poly(Vinyl Chloride: Vinyl Acetate: Vinyl Alcohol) Terpolymer

    Publication Year: 1986, Page(s):297 - 300
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (615 KB)

    Dielectric measurements have been made on poly(vinyl chloride: vinyl acetate: vinyl al cohol) in the frequency range 30 Hz to 100 kHz and in the temperature range 77 to 410 K. A frequencydependent conductivity described by ¿(w) = Aws is observed, where s<1 and is independent of temperature up to 250 K but decreases at higher temperatures. Two relaxations, the ¿- and the ß-relaxation, are observ... View full abstract»

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  • Electrical Conduction and Chemical Structure of Insulating Polymers

    Publication Year: 1986, Page(s):301 - 306
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (915 KB)

    Currents in various polymers were measured using both a corona electrode and an evaporated metal electrode. The former could usually inject more carriers into polymers than the latter. The current in PE was two or three orders of magnitude larger with the corona electrode than with the evaporated metal electrode and injected negative carriers made a greater contribution to the current than positiv... View full abstract»

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  • The Effect of Electrode-Polymer Interfacial Layers on Polymer Conduction

    Publication Year: 1986, Page(s):307 - 311
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (640 KB)

    The tunneling model for electrical conduction of ultrathin polymer films with morphologically different layers is shown to be valid. The effect of barrier structure, i.e. thickness and potential profile, and that of the electrode work function and Fermi energy, are discussed. View full abstract»

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  • Models of Kohlrausch Relaxations

    Publication Year: 1986, Page(s):313 - 318
    Cited by:  Papers (2)
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    The contributions of R. and F. Kohlrausch to the description of mechanical and dielectric relaxation in complex systems are briefly cited as background for a discussion of models of relaxation. Models that have as predictions both the Kohlrausch time-dependent relaxation rate expressed in the form Wo(wct)-n, O View full abstract»

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  • Injection of Charge from Surface Traps into Films with Deep Bulk Traps

    Publication Year: 1986, Page(s):319 - 321
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (399 KB)

    In many cases the profile of an open circuit TSC in Teflon ¿¿ FEP shows two well defined peaks. The first is usually interpreted as due to charge injection from thermally activated surface traps into bulk traps and the second one, occurring at higher temperatures, as charge emission from these volume traps. Extending a calculation done by Kanazawa and Batra [1] a theoretical analysis for the first... View full abstract»

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  • Factors Affecting the Location of the Peak Above TG in TSD Currents in Polystyrene

    Publication Year: 1986, Page(s):323 - 326
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (662 KB)

    For polystyrene, independent measurements of dielectric relaxation time ¿d determined from the TSD ¿ peak and of bulk conductivity a show that the relation ¿¿d= ¿0¿ holds. Space charge ¿ peaks are known to be hard to reproduce in TSD experiments. Factors such as electrode - sample contact, applied voltage, sample preparation and number of free charge carriers are examined separately and lea... View full abstract»

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  • Electrical Conducti on and Space Charge Formation in Semicrystalline Polymers

    Publication Year: 1986, Page(s):327 - 332
    Cited by:  Papers (4)
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    Polarization currents and thermally stimulated depolarization currents have been measured in semicrystalline polypropylene samples with varying manufacturing parameters influencing the structural properties. The effect of interfacial polarization on short-circuit TSD is theoretically explained by a simple three-layer model representing different structural regions of the polymer. It is shown that ... View full abstract»

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  • Polatity-Reversal Current Ttansients in Cellulose Acetate Films

    Publication Year: 1986, Page(s):333 - 337
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (617 KB)

    Polarity-reversal transient currents in cellulose acetate films have been studied as a function of field, thickness, and temperature. The current peaks have been observed in the current-time characteristics and these peaks may be attributed to space charge injection from electrodes. The dependence of the transient current on thickness (I¿d-3) of the sample justifies the existence of SCLC. The car... View full abstract»

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  • Vacuum-Induced Depolatization in Mylar® under an Electric Field

    Publication Year: 1986, Page(s):339 - 341
    Cited by:  Papers (2)
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    Polarization and depolarization currents in Mylar strongly differ when carried out either in a vacuum or in humid air. If vacuum is established during polarization, a current inversion is observed. We interpreted this effect as a withdrawal of free carriers and polarized water molecules by diffusion, for which a tentative diffusion coefficient of 5x10-9 cm2/s was found. View full abstract»

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  • Hv Charging Technique and TSD Studies of Polyethylene Thermo-Electrets

    Publication Year: 1986, Page(s):343 - 345
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    Specially-shaped PE samples as thin as 200 , um in their middle part and becoming thicker toward the edges have been machined from 3 cm thick slabs. Such samples have been charged under high dc voltage in the range of 20 kV, without any corona leakage. TSD studies have been carried out using both the common method and a new differential technique. The interpretation, involving the assumption of a ... View full abstract»

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  • Polarization Phenomena in Rheomolded Polymers

    Publication Year: 1986, Page(s):347 - 350
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    Differential scanning calorimetry has shown that the metastability of polymers is strongly modified by Rheomolding®. The thermally stimulated current technique has been applied to the characterization of conformational states in the amorphous phase. The corresponding enthalpic relaxations have been studied independently from the volumetric ones. Around the glass transition, Rheomolding has been f... View full abstract»

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  • Evolution of Experimental Techniques for the Study of the Electrical Properties of Insulating Materials

    Publication Year: 1986, Page(s):351 - 360
    Cited by:  Papers (73)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1614 KB)

    When an electric field is applied to an insulating material three basic processes can take place: the dipoles tend to rotate, ions migrate and space charge can be injected at the interfaces, depending on such parameters as temperature or applied electric field. For many years, a direct analysis was impossible since the experimentally observable variables gave only an average of what was taking pla... View full abstract»

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Aims & Scope

This Transactions ceased production in 1993. The current retitled publication is  IEEE Transactions on Dielectrics and Electrical Insulation.

Full Aims & Scope