An influence of the firing temperature on elastic constants of alumina porcelain

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00354698" target="_blank" >RIV/68407700:21110/21:00354698 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0069597" target="_blank" >https://doi.org/10.1063/5.0069597</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0069597" target="_blank" >10.1063/5.0069597</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An influence of the firing temperature on elastic constants of alumina porcelain

Popis výsledku v původním jazyce

Young's modulus, shear modulus, and Poisson's ratio are measured on the cylindrical ceramic samples composed of 36 wt.% of kaolin, 30 wt.% of alumina, 12 wt.% of fireclay, and 22 wt.% of feldspar. The samples are fired at temperatures from 100 °C to 1250 °C, and measurements are provided at the room temperature. It is found that Young's and shear modulus keep their values almost constant (12 GPa and 4 GPa) up to 900 °C. After firings above 900 °C, a steep increase in Young's and shear modulus is observed due to sintering, and the final values of these moduli reach 115 GPa and 48 GPa, respectively. Poisson's ratio ranges between 0.4 and 0.5 after firings up to 900 °C. These high values are caused by the anisotropy of the cylindrical samples. Above 1000 °C, Poisson's ratio decreases in its value due to the presence of the glassy phase. The value of Poisson's ratio is 0.20 after firing at 1250 °C.

Název v anglickém jazyce

An influence of the firing temperature on elastic constants of alumina porcelain

Popis výsledku anglicky

Young's modulus, shear modulus, and Poisson's ratio are measured on the cylindrical ceramic samples composed of 36 wt.% of kaolin, 30 wt.% of alumina, 12 wt.% of fireclay, and 22 wt.% of feldspar. The samples are fired at temperatures from 100 °C to 1250 °C, and measurements are provided at the room temperature. It is found that Young's and shear modulus keep their values almost constant (12 GPa and 4 GPa) up to 900 °C. After firings above 900 °C, a steep increase in Young's and shear modulus is observed due to sintering, and the final values of these moduli reach 115 GPa and 48 GPa, respectively. Poisson's ratio ranges between 0.4 and 0.5 after firings up to 900 °C. These high values are caused by the anisotropy of the cylindrical samples. Above 1000 °C, Poisson's ratio decreases in its value due to the presence of the glassy phase. The value of Poisson's ratio is 0.20 after firing at 1250 °C.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings 2429

ISBN

978-0-7354-4139-2

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Kazimierz Dolny

Datum konání akce

1. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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