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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3647

Title: DERIVATION OF AN ACTIVATION-ENERGY SPECTRUM FOR DEFECT PROCESSES FROM ISOTHERMAL MEASUREMENTS, USING A MINIMIZATION PRINCIPLE AND FOURIER-ANALYSIS
Authors: KNUYT, Gilbert
Stulens, Herwig
DE CEUNINCK, Ward
STALS, Lambert
Issue Date: 1993
Publisher: IOP PUBLISHING LTD
Citation: MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 1(4). p. 437-448
Abstract: We present a method to calculate the activation energy spectrum (AES) for defect processes from isothermal data, based on a minimization principle (smoothest possible spectrum compatible with the experimental data). This principle leads to a matrix relation, from which the AES can be calculated in a very simple way, if the relevant functions are Fourier transformed. A window function suited to AES calculations is derived. The method is tested for simulated and experimental data. It appears to be rapid and flexible. In principle the number of input data can be made very large, leading to a sharp energy resolution.
Notes: KNUYT, G, LIMBURGS UNIV CENTRUM,INST MAT RES,DIV MAT PHYS,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.
URI: http://hdl.handle.net/1942/3647
ISI #: A1993MP24700008
ISSN: 0965-0393
Type: Journal Contribution
Appears in Collections: Research publications

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