TEMPERATURE DEPENDENCE OF YOUNG’S MODULUS OF SILICATE CERAMICS FROM THE MAGNESIA–ALUMINA–SILICA SYSTEM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43915036" target="_blank" >RIV/60461373:22310/18:43915036 - 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

TEMPERATURE DEPENDENCE OF YOUNG’S MODULUS OF SILICATE CERAMICS FROM THE MAGNESIA–ALUMINA–SILICA SYSTEM

Popis výsledku v původním jazyce

Silicate ceramics based on the magnesia-alumina-silica system, including mullite ceramics, steatite ceramics and cordierite ceramics are among the most widely used engineering ceramics. In this contribution the temperature dependence of the Young’s modulus, i.e. a basic input parameters e.g. for thermal shock parameter calculations, is investigated in a systematic way with changing composition, achieved by mixing two raw materials (kaolin and talc). After characterization via X-ray diffraction, thermal analysis and laser diffraction the raw materials were mixed to achieve kaolin-talc weight ratios of 10:0, 8:2, 6:4, 4:6, 2:8 and 0:10, ball-milled in water, dried, crushed, uniaxially pressed at 40 MPa and sintered at 1280 °C (2 °C/min, 2 h). The samples were characterized by X-ray diffraction and Archimedes measurements and their Young’s modulus was measured via impulse excitation, from room temperature up to 1000 °C. The results indicate that all materials contain cristobalite and exhibit its typical elastic anomaly. The elastic hysteresis that is well known for materials containing cordierite is suppressed in materials that contain also mullite beside cordierite. The Young’s modulus of compositions made with kaolin-talc ratios 10:0, 8:2 and 0:10 is almost independent of temperature.

Název v anglickém jazyce

TEMPERATURE DEPENDENCE OF YOUNG’S MODULUS OF SILICATE CERAMICS FROM THE MAGNESIA–ALUMINA–SILICA SYSTEM

Popis výsledku anglicky

Silicate ceramics based on the magnesia-alumina-silica system, including mullite ceramics, steatite ceramics and cordierite ceramics are among the most widely used engineering ceramics. In this contribution the temperature dependence of the Young’s modulus, i.e. a basic input parameters e.g. for thermal shock parameter calculations, is investigated in a systematic way with changing composition, achieved by mixing two raw materials (kaolin and talc). After characterization via X-ray diffraction, thermal analysis and laser diffraction the raw materials were mixed to achieve kaolin-talc weight ratios of 10:0, 8:2, 6:4, 4:6, 2:8 and 0:10, ball-milled in water, dried, crushed, uniaxially pressed at 40 MPa and sintered at 1280 °C (2 °C/min, 2 h). The samples were characterized by X-ray diffraction and Archimedes measurements and their Young’s modulus was measured via impulse excitation, from room temperature up to 1000 °C. The results indicate that all materials contain cristobalite and exhibit its typical elastic anomaly. The elastic hysteresis that is well known for materials containing cordierite is suppressed in materials that contain also mullite beside cordierite. The Young’s modulus of compositions made with kaolin-talc ratios 10:0, 8:2 and 0:10 is almost independent of temperature.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GA15-18513S" target="_blank" >GA15-18513S: Příprava a charakterizace oxidové a silikátové keramiky s řízenou mikrostrukturou a modelování souvislostí mezi mikrostrukturou a vlastnostmi</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 12th Pacific Rim Conference on Ceramic and Glass Technology

ISBN

978-1-119-49421-8

ISSN

1042-1122

e-ISSN

neuvedeno

Počet stran výsledku

12

Strana od-do

99-110

Název nakladatele

American Ceramic Society (ACerS)

Místo vydání

Westerville, Ohio

Místo konání akce

Waikoloa

Datum konání akce

21. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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