Thermal Properties of Illite-Zeolite Mixtures up to 1100 degrees C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00558615" target="_blank" >RIV/61389021:_____/22:00558615 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/22:10456289

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/15/9/3029" target="_blank" >https://www.mdpi.com/1996-1944/15/9/3029</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma15093029" target="_blank" >10.3390/ma15093029</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal Properties of Illite-Zeolite Mixtures up to 1100 degrees C

Popis výsledku v původním jazyce

Illitic clays are the commonly used material in building ceramics. Zeolites are microporous, hydrated crystalline aluminosilicates, they are widely used due to their structure and absorption properties. In this study, illitic clay (Fuzerradvany, Hungary) was mixed with natural zeolite (NiznATIN SMALL LETTER Y WITH ACUTE Hrabovec, Slovakia) with up to 50 wt.% of zeolite content. The samples were submitted to thermal analyses, such as differential thermal analysis, differential scanning calorimetry, thermogravimetry, and dilatometry. In addition, the evolution of thermal diffusivity, thermal conductivity, and specific heat capacity in the heating stage of firing were measured and discussed. The amount of the physically bound water in the samples increased along with the amount of zeolite. The temperature of the illite dehydroxylation (peak temperature) was slightly shifted to lower temperatures, from 609 degrees C to 575 degrees C (for sample IZ50). On the other hand, the mass loss and the shrinkage of the samples significantly increased with the zeolite content in the samples. Sample IZ50 reached 10.8% shrinkage, while the sample prepared only from the illitic clay contracted by 5.8%. Nevertheless, the temperature of the beginning of the sintering (taken from the dilatometric curves) decreased from 1021 degrees C (for illitic clay) to 1005 degrees C (for IZ50). The thermal diffusivity and thermal conductivity values decreased as the amount of zeolite increased in the samples, thus showing promising thermal insulating properties.

Název v anglickém jazyce

Thermal Properties of Illite-Zeolite Mixtures up to 1100 degrees C

Popis výsledku anglicky

Illitic clays are the commonly used material in building ceramics. Zeolites are microporous, hydrated crystalline aluminosilicates, they are widely used due to their structure and absorption properties. In this study, illitic clay (Fuzerradvany, Hungary) was mixed with natural zeolite (NiznATIN SMALL LETTER Y WITH ACUTE Hrabovec, Slovakia) with up to 50 wt.% of zeolite content. The samples were submitted to thermal analyses, such as differential thermal analysis, differential scanning calorimetry, thermogravimetry, and dilatometry. In addition, the evolution of thermal diffusivity, thermal conductivity, and specific heat capacity in the heating stage of firing were measured and discussed. The amount of the physically bound water in the samples increased along with the amount of zeolite. The temperature of the illite dehydroxylation (peak temperature) was slightly shifted to lower temperatures, from 609 degrees C to 575 degrees C (for sample IZ50). On the other hand, the mass loss and the shrinkage of the samples significantly increased with the zeolite content in the samples. Sample IZ50 reached 10.8% shrinkage, while the sample prepared only from the illitic clay contracted by 5.8%. Nevertheless, the temperature of the beginning of the sintering (taken from the dilatometric curves) decreased from 1021 degrees C (for illitic clay) to 1005 degrees C (for IZ50). The thermal diffusivity and thermal conductivity values decreased as the amount of zeolite increased in the samples, thus showing promising thermal insulating properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA20-01536S" target="_blank" >GA20-01536S: Řízená modifikace mineralogického složení keramického střepu za účelem zlepšení jeho užitných vlastností</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

15

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

3029

Kód UT WoS článku

000794726200001

EID výsledku v databázi Scopus

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