Cole-Cole Broadening in Dielectric Relaxation and Strange Kinetics

Puzenko, Alexander; Ishai, Paul Ben; Feldman, Yuri

doi:10.1103/physrevlett.105.037601

Cited by 70 publications

(59 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the dimensionless time interval ξ = τ /τ c an average number N τ of discrete interactions occurs, which can be described by a recursive fractal model, 7 yielding…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…As an initial validation of the approach, CC data for two porous silica glasses have been evaluated. 7 In the first part of this paper, results for aqueous solutions of D- many life processes 8,9 and because the hydration properties of carbohydrates are essential for their structural and functional properties. 10…”

Section: Introductionmentioning

confidence: 99%

“…In correspondence with a previous relation between the relaxation amplitude and relaxation time of glass-forming liquids and a polymeric melt 6 some of us have recently presented an approach that proceeds from the idea of a fractal nature of the time set representing motions of electric dipoles interacting with their surrounding matrices. 2,7 The proposed approach demonstrates an intrinsic relation between all parameters of the CC relaxation term, controlled by external macroscopic variables, such as temperature, pressure, and concentration. In principle, it allows for a representation of any change in the state of the complex system (CS) under consideration by a well-defined trajectory in a 3D specific phase space.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dielectric spectra broadening as the signature of dipole-matrix interaction. I. Water in nonionic solutions

Levy

Puzenko

Kaatze

et al. 2012

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

Whenever water interacts with another dipolar entity, a broadening of its dielectric relaxation occurs. Often this broadening can be described by the Cole-Cole (CC) spectral function. A new phenomenological approach has been recently presented [A. Puzenko, P. Ben Ishai, and Y. Feldman, Phys. Rev. Lett. 105, 037601 (2010)] that illustrates a physical mechanism of the dipole-matrix interaction underlying the CC behavior in complex systems. By considering the relaxation amplitude Δε, the relaxation time τ, and the broadening parameter α, one can construct a set of 3D trajectories, representing the dynamic behavior of different systems under diverse conditions. Our hypothesis is that these trajectories will contribute to a deeper understanding of the dielectric properties of complex systems. The paper demonstrates how the model describes the state of water in aqueous solutions of non-ionic solutes. For this purpose complex dielectric spectra for aqueous solutions of D-glucose and D-fructose are analyzed.

show abstract

“…In the dimensionless time interval ξ = τ /τ c an average number N τ of discrete interactions occurs, which can be described by a recursive fractal model, 7 yielding…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dielectric spectra broadening as the signature of dipole-matrix interaction. I. Water in nonionic solutions

Levy

Puzenko

Kaatze

et al. 2012

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…We have used it here because its flexibility allows us to make a circuit model of the data without any preconceived assumptions regarding the specific form of relaxation peak function. In recent years the power law exponents of the Cole-Cole and Havriliak-Negami functions have received physical interpretation related to a self-similar (fractal) hierarchy of relaxation times associated with correlated cooperative motions of a dipole and its environment [10,11]. The reader is referred to [12] and references therein for further detail.…”

Section: Response Functionsmentioning

confidence: 99%

Re-examination of the dielectric spectra of epoxy resins: bulk charge transport and interfacial polarization peaks

Chalashkanov

Dodd

Dissado

et al. 2014

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

Citation: Chalashkanov, N. M., Dodd, S. J., Dissado, L. A. & Fothergill, J. (2014). Reexamination of the dielectric spectra of epoxy resins: Bulk charge transport and interfacial polarization peaks. IEEE Transactions on Dielectrics and Electrical Insulation, 21(3), pp. 1330 -1341 . doi: 10.1109 /TDEI.2014 This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent ABSTRACTThe dielectric properties of two amine cured bisphenol-A epoxy resin systems, Araldite CY1301 and Araldite CY1311 have been characterized using dielectric spectroscopy over the frequency range 1 mHz to 100 kHz. These two epoxy resin systems were chosen to allow the dielectric response to be studied from above and below the glass transition, as Araldite CY1311 is a modified version (with added plasticizer) of Araldite CY1301. The dielectric response was found to comprise both bulk and interfacial features. Above the glass transition temperature, two processes were identified, a low frequency process usually ascribed to interfacial polarization is shown to be a bulk process termed Quasi-DC (QDC) conduction and a dielectric dispersion usually taken to be a bulk process has been shown to be an interfacial effect.

show abstract

“…Udo et al [225] and Alexander et al [224] have provided a physical interpretation of CC behaviour in a framework of complex system theory. They propose that CC behaviour can be expected when relaxation times corresponding to the motion of electric dipoles interacting with their surrounding matrices possess fractal nature.…”

Section: Loss Peak Behaviourmentioning

confidence: 99%

Condition monitoring of biodegradable oil filled transformer

Mudiyanselage¹,

Bandara²

View full text Add to dashboard Cite

Natural and synthetic ester insulating oils have higher fire points and excellent biodegradable characteristics. Therefore, in order to reduce the adverse environmental impact and to improve the fire safety of transformers, there is an increasing demand for natural and synthetic ester insulating liquids as a transformer insulating oil. However, present understanding on ageing behaviour of ester oil-paper composite insulation system and knowledge on application of existing condition monitoring tools for ester based insulation systems are inadequate. This impedes the cost effective and reliable field applications of ester insulating oils, particularly application of natural esters. To reduce this knowledge gap, series of controlled ageing experiments are performed in this research project to provide a better and comprehensive understanding on ageing behaviour of ester oil-paper insulation systems. Furthermore, applicability of existing chemical and electrical based condition monitoring techniques for ester oil-paper insulation systems is systematically investigated in this research project.In this thesis, ageing behaviour of dry pressboard insulation in mineral and three different ester insulating oils under simulated transformer operating environment is investigated. Moreover, the ageing behaviour of natural ester-pressboard composite insulation in moisture rich environment is also compared with that of mineral oil-pressboard system. Degree of polymerisation of pressboard samples measured at different ageing interval is used in this research to determine the ageing condition of pressboard. Moreover, applicability of oil related diagnostic parameters such as concentration of dissolved furanic compounds, acidity value, Dielectric Dissipation Factor (DDF), viscosity and colour to assess the degree of degradation of both ester and mineral insulating oils is thoroughly investigated in this research project. The potential of FTIR (Fourier Transform Infrared spectroscopy) techniques for characterising the degree of degradation of paper insulation is also discussed in this thesis. In addition, this thesis concentrates on characterisation of the charge dynamic in insulating oil through modelling of their dielectric responses.The comparison of gassing behaviour of ester and mineral insulating oils under two different low temperature faults and low energy electric discharge condition is also presented in this thesis.Dissolved Gas Analysis (DGA) results presented in this thesis depicts that faults gases detected in ester and mineral oil samples subjected to a similar fault are akin in type but quantitatively different. The quantity of fault gases produced in two different natural ester oils is also dissimilar.For example, soy-based natural ester produces a large quantity of ethane (C2H6) under low temperature overheating condition than sunflower oil based natural ester. Therefore, this research project investigates the applicability of well-established DGA interpretation schemes namely Duval II | P a g e triangle, IE...

show abstract

Cole-Cole Broadening in Dielectric Relaxation and Strange Kinetics

Cited by 70 publications

References 12 publications

Dielectric spectra broadening as the signature of dipole-matrix interaction. I. Water in nonionic solutions

Dielectric spectra broadening as the signature of dipole-matrix interaction. I. Water in nonionic solutions

Re-examination of the dielectric spectra of epoxy resins: bulk charge transport and interfacial polarization peaks

Condition monitoring of biodegradable oil filled transformer

Contact Info

Product

Resources

About