About: INTERNAL FRICTION IN MAGNESIUM COMPOSITES BY RESONANCE SPECTROSCOPY

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have analyzed magnesium composites structure by internal friction at sample resonance frequency. The first, second and third resonance signal was measured by FFT. Results measured on two identical samples of magnesium composites, denoted as H01 and H02 are presented. We have applied aging process on sample H02 by liquid nitrogen at temperature 77 K, where the sample was dipped for 15 minutes. The differences of damped harmonic motion parameters for three harmonic signals were fitted by standard equation for damped harmonic motion. The forced vibrations amplitudes for the first harmonic signal are similar for both samples. We can see in our case that the amplitude of the forced vibrations of both samples is the lowest for the second harmonic signal. Sample H02 has much higher amplitude for the third harmonic signal then sample H01. Amplitude of third harmonic signal increases due to ageing. If we compare the values of vibration damping coefficients for different harmonics then we found that the maxi We have analyzed magnesium composites structure by internal friction at sample resonance frequency. The first, second and third resonance signal was measured by FFT. Results measured on two identical samples of magnesium composites, denoted as H01 and H02 are presented. We have applied aging process on sample H02 by liquid nitrogen at temperature 77 K, where the sample was dipped for 15 minutes. The differences of damped harmonic motion parameters for three harmonic signals were fitted by standard equation for damped harmonic motion. The forced vibrations amplitudes for the first harmonic signal are similar for both samples. We can see in our case that the amplitude of the forced vibrations of both samples is the lowest for the second harmonic signal. Sample H02 has much higher amplitude for the third harmonic signal then sample H01. Amplitude of third harmonic signal increases due to ageing. If we compare the values of vibration damping coefficients for different harmonics then we found that the maxi (en)
Title	INTERNAL FRICTION IN MAGNESIUM COMPOSITES BY RESONANCE SPECTROSCOPY INTERNAL FRICTION IN MAGNESIUM COMPOSITES BY RESONANCE SPECTROSCOPY (en)
skos:prefLabel	INTERNAL FRICTION IN MAGNESIUM COMPOSITES BY RESONANCE SPECTROSCOPY INTERNAL FRICTION IN MAGNESIUM COMPOSITES BY RESONANCE SPECTROSCOPY (en)
skos:notation	RIV/00216305:26220/08:PU77830!RIV10-MSM-26220___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/07/1393), Z(MSM0021630503)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Tofel, Pavel Šikula, Josef
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	372948
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/08:PU77830
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ultrasonic, non-destructive, internal friction (en)
http://linked.open.../riv/klicoveSlovo	non-destructive ultrasonic internal friction
http://linked.open...ontrolniKodProRIV	[CF7B450A7D39]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Brno, Czech Republic
http://linked.open...i/riv/nazevZdroje	6th Workshop NDT 2008
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Nonlinear ultrasonic spectroscopy of magnesium metallic composits and alloys
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Tofel, Pavel Šikula, Josef
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2008-11-22 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Nové trendy v mikroelektronických systémech a nanotechnologiích (MIKROSYN)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Marta Kořenská and Luboš Pazdera
https://schema.org/isbn	978-80-7204-610-2
http://localhost/t...ganizacniJednotka	26220

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