Young’s Modulus of Alumina Ceramics During Isothermal Heating

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312607" target="_blank" >RIV/68407700:21110/17:00312607 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4994520" target="_blank" >http://dx.doi.org/10.1063/1.4994520</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4994520" target="_blank" >10.1063/1.4994520</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Young’s Modulus of Alumina Ceramics During Isothermal Heating

Popis výsledku v původním jazyce

The Young’s modulus is studied in dehydroxylated alumina ceramic samples in the solid-state sintering region. The initial composition is 35.5 wt.% of kaolin, 35 wt.% of Al2O3, and 29.5 wt.% of feldspar. Since solid-state sintering and dehydroxylation run simultaneously, the samples are preheated at 490 °C for 40 h to reach a complete transformation of kaolinite into metakaolinite. Afterwards, the samples are studied by the modulated force thermomechanical analysis in the isothermal regime at the temperatures 500, 600, 700, 800, 900, 1000, and 1050 °C when no liquid phase is created. The Young’s modulus is measured for 8 h. For temperatures 500, 600, 700, and 800 °C only a small increase (2 – 8 %) of the Young’s modulus is observed, and after 4 h the samples became stabilized. On the other hand, for temperatures higher than 1000 °C the increase of the Young’s modulus continues during the whole time period and reaches over 90 %.

Název v anglickém jazyce

Young’s Modulus of Alumina Ceramics During Isothermal Heating

Popis výsledku anglicky

The Young’s modulus is studied in dehydroxylated alumina ceramic samples in the solid-state sintering region. The initial composition is 35.5 wt.% of kaolin, 35 wt.% of Al2O3, and 29.5 wt.% of feldspar. Since solid-state sintering and dehydroxylation run simultaneously, the samples are preheated at 490 °C for 40 h to reach a complete transformation of kaolinite into metakaolinite. Afterwards, the samples are studied by the modulated force thermomechanical analysis in the isothermal regime at the temperatures 500, 600, 700, 800, 900, 1000, and 1050 °C when no liquid phase is created. The Young’s modulus is measured for 8 h. For temperatures 500, 600, 700, and 800 °C only a small increase (2 – 8 %) of the Young’s modulus is observed, and after 4 h the samples became stabilized. On the other hand, for temperatures higher than 1000 °C the increase of the Young’s modulus continues during the whole time period and reaches over 90 %.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

THERMOPHYSICS 2017: 22nd International Meeting of Thermophysics 2017 and 4th Meeting of EnRe 2017

ISBN

978-0-7354-1546-1

ISSN

—

e-ISSN

1551-7616

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

American Institute of Physic AIP

Místo vydání

Santa Fe

Místo konání akce

Těrchová

Datum konání akce

12. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426600400045