Elastic properties and damping behavior of alumina-zirconia composites at room temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43894493" target="_blank" >RIV/60461373:22310/12:43894493 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.04.045" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2012.04.045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.04.045" target="_blank" >10.1016/j.ceramint.2012.04.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Elastic properties and damping behavior of alumina-zirconia composites at room temperature

Popis výsledku v původním jazyce

Alumina-zirconia composite ceramics (AZ composites) have been prepared in the whole range of compositions from pure alumina to zirconia (in steps of 10 vol.%) by slip casting, followed by sintering at 1350 °C and microstructural characterization via theArchimedes method (relative densities 0.93-0.99). Young's modulus has been measured at room temperature via the impulse excitation technique (IET) and, after appropriate porosity correction (linear, power-law, exponential), found to be in good agreementwith the Hashin-Shtrikman bounds. The damping factor (internal friction), which has been measured for dense AZ composites (also via IET at room temperature), is found to increase with increasing zirconia content. Damping factors measured for porous AZ composites with porosities 25-71 %, prepared with corn starch as a pore former, have been found to depend only slightly on porosity, unless the porosities are extremely high (} 70 %). At these porosities, however, where the Young's moduli a

Název v anglickém jazyce

Elastic properties and damping behavior of alumina-zirconia composites at room temperature

Popis výsledku anglicky

Alumina-zirconia composite ceramics (AZ composites) have been prepared in the whole range of compositions from pure alumina to zirconia (in steps of 10 vol.%) by slip casting, followed by sintering at 1350 °C and microstructural characterization via theArchimedes method (relative densities 0.93-0.99). Young's modulus has been measured at room temperature via the impulse excitation technique (IET) and, after appropriate porosity correction (linear, power-law, exponential), found to be in good agreementwith the Hashin-Shtrikman bounds. The damping factor (internal friction), which has been measured for dense AZ composites (also via IET at room temperature), is found to increase with increasing zirconia content. Damping factors measured for porous AZ composites with porosities 25-71 %, prepared with corn starch as a pore former, have been found to depend only slightly on porosity, unless the porosities are extremely high (} 70 %). At these porosities, however, where the Young's moduli a

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1170" target="_blank" >GAP108/12/1170: Porézní keramika s řízenou elasticitou a tepelnou vodivostí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

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Svazek periodika

38

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

9

Strana od-do

5931-5939

Kód UT WoS článku

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EID výsledku v databázi Scopus

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