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FRACTALS AND DOMINANT UNIQUENESS PARAMETERS IN THE DESCRIPTIONS OF SOME ELECTRICAL ENGINEERING MATERIALS AND COMPONENTS

D. A. Iordache1,*

Affiliation

  1. Physics Department, University “Politehnica”, 77206 Bucharest, Romania

Abstract

Starting from the finding that the most intriguing feature of the fractals applications in physics refers to the dominant (prevalent) character of the specimen sizes in the description of some mechanical parameters or even of some electrical parameters (as e.g. the electrical capacitance of some capacitors), this work analyzes the presence of other dominant uniqueness parameters in the descriptions of some characteristic parameters of the materials intended to electrical engineering. There were pointed out the following dominant uniqueness parameters in the descriptions of some magnetic materials: a) the initial relative permeability ri m , which determines with sufficiently good accuracy – by means of some parabolic correlations in ri m log- the parameters of the hysteresis cycle, as well as the dispersion parameters (the so-called “limit laws”) of spinelic ferrimagnetic materials, b) the oscillations frequency, which determines (by means of some power laws) the viscous friction coefficient of the magnetization domains oscillations, as well as the quality factor of sound propagation through certain elastic media..

Keywords

Fractals, Uniqueness parameters, Power laws, Magnetic dispersion, Magnetic hysteresis.

Submitted at: April 26, 2004
Accepted at: June 22, 2004

Citation

D. A. Iordache, FRACTALS AND DOMINANT UNIQUENESS PARAMETERS IN THE DESCRIPTIONS OF SOME ELECTRICAL ENGINEERING MATERIALS AND COMPONENTS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 3, pp. 925-930 (2004)