Influence of Thermal and Mechanical Cycles on the Damping Behaviour of Mg Based-Nanocomposite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10133863" target="_blank" >RIV/00216208:11320/12:10133863 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Thermal and Mechanical Cycles on the Damping Behaviour of Mg Based-Nanocomposite

Popis výsledku v původním jazyce

Magnesium matrix composites show improved wear resistance, enhanced strength and creep resistance in comparison with their monolithic counterparts, on the other hand keep low density and good machinability. Internal friction measurements are a suitable tool to detect changes in the microstructure of thermally or mechanically loaded composites. Samples from pure magnesium reinforced with zirconia nanoparticles were thermally cycled between room temperature and increasing upper temperature of thermal cycle. After thermal cycling amplitude dependence of damping measured in terms of the decrement was measured. Very high values of the logarithmic decrement are described to the poor binding between the matrix and ceramic nanoparticles. The influence of number of cyclic bending to fatigue on the damping behaviour of the same nanocomposite was determined at room temperature. The measured decrease of the resonant frequency indicates a loss of stiffness during cycling. Crack deflection along an

Název v anglickém jazyce

Influence of Thermal and Mechanical Cycles on the Damping Behaviour of Mg Based-Nanocomposite

Popis výsledku anglicky

Magnesium matrix composites show improved wear resistance, enhanced strength and creep resistance in comparison with their monolithic counterparts, on the other hand keep low density and good machinability. Internal friction measurements are a suitable tool to detect changes in the microstructure of thermally or mechanically loaded composites. Samples from pure magnesium reinforced with zirconia nanoparticles were thermally cycled between room temperature and increasing upper temperature of thermal cycle. After thermal cycling amplitude dependence of damping measured in terms of the decrement was measured. Very high values of the logarithmic decrement are described to the poor binding between the matrix and ceramic nanoparticles. The influence of number of cyclic bending to fatigue on the damping behaviour of the same nanocomposite was determined at room temperature. The measured decrease of the resonant frequency indicates a loss of stiffness during cycling. Crack deflection along an

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F07%2F1393" target="_blank" >GA106/07/1393: Nelineární ultrazvuková spektroskopie kompozitů a slitin na bázi hořčíku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

FATIGUE BEHAVIOUR OF FIBER REINFORCED POLYMERS: EXPERIMENTS AND SIMULATIONS

ISBN

978-1-60595-091-4

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

239-248

Název nakladatele

DESTECH PUBLICATIONS, INC

Místo vydání

LANCASTER

Místo konání akce

Nanjing

Datum konání akce

16. 4. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000314402100016