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STUDY OF THE DOMAIN STRUCTURE BEHAVIOR FOR DIFFERENT GENESIS METEORITES WITH THE EFFECT OF THE MAGNETOACOUSTIC EMISSION

Sergey Ivanchenko, Prof. Victor Grokhovsky

First published: 2017-06-20https://doi.org/10.5593/sgem2017/11/s01.068View metrics

Abstract

The paper presents the results of the analysis of the magnetoacoustics emission (MAE) signal properties of the meteorites of different genesis and various chemical composition. Magnetoacoustics emission method is characterized by a large number of informative parameters, and is associated with the restructuring of the domain structure. For instance, magnetic features of Fe-Ni alloys are related in part to the degree of defect structure. Chemical composition, structure and magnetic features of meteorites are related to conditions of their formation as well as thermal and shock history. Comparison of various meteorites samples MAE signals will help to better understand those thermodynamic processes that occurred with meteorites and influenced the kind and type of domain structure. In course of work, the frequency spectra of iron meteorites MAE signals were studied for the first time, which differ from each other, depending on the conditions for the formation of the meteorite and its shock history. A comparative analysis of MAE signals with MAE signals of artificially manufactured Fe-Ni alloy samples was also carried out. An analysis of iron alloys defectiveness can be successfully carried out on the basis of magnetic behavior investigation using magnetoacoustic emission (MAE).

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Title
STUDY OF THE DOMAIN STRUCTURE BEHAVIOR FOR DIFFERENT GENESIS METEORITES WITH THE EFFECT OF THE MAGNETOACOUSTIC EMISSION
Authors
Sergey Ivanchenko, Prof. Victor Grokhovsky
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2017
Pages
541-548
SWS Citekey
Ivanchenko20171541548
ISSN
1314-2704
ISBN
978-619-7105-98-8
Language
en
Publication type
Conference Paper
Keywords
magnetoacoustic emissionmeteoritesdomain structurenondestructive testingsignal analysis.
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