Firing of Illite-based Ceramics Followed by Dynamical Thermomechanical Analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00342928" target="_blank" >RIV/68407700:21110/20:00342928 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0025981" target="_blank" >https://doi.org/10.1063/5.0025981</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0025981" target="_blank" >10.1063/5.0025981</a>
Alternative languages
Result language
angličtina
Original language name
Firing of Illite-based Ceramics Followed by Dynamical Thermomechanical Analysis
Original language description
Illitic clay (Tokai region, Hungary) is investigated using Young’s modulus, which is determined by the dynamical thermomechanical analysis in the temperature cycle 20 °C -> 1100 °C -> 20 °C. Supplementary analyses are thermodilatometry and thermogravimetry. The development of bulk density with temperature is also evaluated. The bulk density decreases due to mass loss and weak thermal expansion. Despite these findings, Young’s modulus doubled its values. It can be explained by the tighter position of clay crystals after a release of the physically bound water. In the temperature interval of 300 °C -> 700 °C Young’s modulus decreases linearly because no structural and microstructural changes took place. Dehydroxylation illite is presented at the temperature above 450 °C, but only a small decrease of Young’s modulus at 700 °C could be ascribed to dehydroxylation of illite. Both, the solid-state sintering and following the liquid-state sintering increases values of Young’s modulus at 700 °C -> 1100 °C -> 750 °C. Microcracking begins after reaching the glass transition temperature as a result of different thermal expansions of quartz and other minerals. The sharp V-shape minimum of Young’s modulus and its short recovery is observed. They are caused by the reversal of radial and tangential stresses acting on the quartz grains between 600 °C -> 500 °C. The microcracking continued and Young’s modulus decreases its values at 500 °C -> 20 °C.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
<a href="/en/project/GA20-01536S" target="_blank" >GA20-01536S: Controlled modification of mineralogical composition of ceramic body for improvement of its utility properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
AIP Conference Proceedings 2275
ISBN
978-0-7354-4005-0
ISSN
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e-ISSN
1551-7616
Number of pages
5
Pages from-to
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Publisher name
AIP Publishing, APL, the American Institute of Physics
Place of publication
Melville, NY
Event location
Eger
Event date
Sep 2, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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