Cracks detection in Mg alloy by electro-ultrasonic spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F11%3A00526135" target="_blank" >RIV/60162694:G43__/11:00526135 - isvavai.cz</a>
Result on the web
<a href="http://vavtest.unob.cz/registr" target="_blank" >http://vavtest.unob.cz/registr</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Cracks detection in Mg alloy by electro-ultrasonic spectroscopy
Original language description
New non-destructive testing (NDT) method is based on the effect of the ultrasonic vibrations on the electron transport in samples with macroscopic defects as cracks or defect centers affecting electrical conductivity. On the frequency given by the subtraction of exciting frequencies new intermodulation signal appears. Its value is given by electric resistance modulation by the defects and un-homogeneities in the sample structure. In our experiment we used the ultrasonic actuator with frequency f(U) whenthe period of wave is longer than the dielectric relaxation time in analyzed sample. In this case the effects of electron bunching by ultrasonic wave are negligible. The ultrasonic wave length is much larger than the electrons mean free path and the wave period is much longer than the mean free time among the electrons collision with scattering centers and defects. Then the electron transport is described by the quasi-steady state transport equation in one-electron approximation. Becaus
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
KA - Militarism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD102%2F09%2FH074" target="_blank" >GD102/09/H074: Diagnostics of material defects using the latest defectoscopic methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE
ISBN
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ISSN
1013-9826
e-ISSN
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Number of pages
4
Pages from-to
294-297
Publisher name
TRANS TECH PUBLICATIONS LTD, LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
Place of publication
Zurich, Švýcarsko
Event location
Brno
Event date
Jan 1, 2010
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
000291704700066