Formation of mullite and mullite-corundum composites from kaolin using spark plasma sintering

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00543971" target="_blank" >RIV/61389021:_____/21:00543971 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378297:_____/21:00543971 RIV/61989100:27690/21:10246491 RIV/68407700:21340/21:00350493

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs41779-021-00571-8" target="_blank" >https://link.springer.com/article/10.1007%2Fs41779-021-00571-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s41779-021-00571-8" target="_blank" >10.1007/s41779-021-00571-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Formation of mullite and mullite-corundum composites from kaolin using spark plasma sintering

Popis výsledku v původním jazyce

Mullite, an excellent and versatile material, was synthesized, alone and in a composite with alumina, from natural kaolin-a primary product of a kaolin clay quarry. Kaolin powder for the mullitization process was inserted into a spark plasma sintering (SPS) apparatus in the form of raw kaolin, and in another experiment in the form of calcinated kaolin freed from bound water. Thermal properties, microstructure and phase composition were studied on the obtained samples. It was found out that the effect of calcination was in dehydration of kaolinite and amorphization of its phase composition. Thermal properties of the dehydrated and as-received kaolinite-based material were very similar. Materials with a perfect thermal insulation character were received. Dehydrated and as-received powders were mixed with alumina powder (corrundum phase) and fired by SPS. Mechanical properties-Vickers microhardness as well as parameters based on instrumented indentation were enhanced in the composite because of alumina content.

Název v anglickém jazyce

Formation of mullite and mullite-corundum composites from kaolin using spark plasma sintering

Popis výsledku anglicky

Mullite, an excellent and versatile material, was synthesized, alone and in a composite with alumina, from natural kaolin-a primary product of a kaolin clay quarry. Kaolin powder for the mullitization process was inserted into a spark plasma sintering (SPS) apparatus in the form of raw kaolin, and in another experiment in the form of calcinated kaolin freed from bound water. Thermal properties, microstructure and phase composition were studied on the obtained samples. It was found out that the effect of calcination was in dehydration of kaolinite and amorphization of its phase composition. Thermal properties of the dehydrated and as-received kaolinite-based material were very similar. Materials with a perfect thermal insulation character were received. Dehydrated and as-received powders were mixed with alumina powder (corrundum phase) and fired by SPS. Mechanical properties-Vickers microhardness as well as parameters based on instrumented indentation were enhanced in the composite because of alumina content.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/EF17_048%2F0007373" target="_blank" >EF17_048/0007373: Predikce poškození konstrukčních materiálů</a><br>

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 periodika

Journal of the Australian Ceramic Society

ISSN

2510-1560

e-ISSN

2510-1579

Svazek periodika

57

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

AU - Austrálie

Počet stran výsledku

11

Strana od-do

651-661

Kód UT WoS článku

000614670100001

EID výsledku v databázi Scopus

2-s2.0-85100463007