The influence of texture on elastic and thermophysical properties of kaolinand illite-based ceramic bodies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00305385" target="_blank" >RIV/68407700:21110/17:00305385 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2016.11.100" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2016.11.100</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2016.11.100" target="_blank" >10.1016/j.ceramint.2016.11.100</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The influence of texture on elastic and thermophysical properties of kaolinand illite-based ceramic bodies

Popis výsledku v původním jazyce

The influence of technological texture in illite- and kaolin-based ceramic bodies was studied on textured experimental samples. Strong texture was created by spreading (layering) a wet plastic mass. The texture was confirmed by XRD analysis. Anisotropy of Young's modulus (E), thermal diffusivity (a), and relative length changes (ε) was studied as a function of firing temperature in the interval 20–1200 °C. Anisotropy was assessed based on the values of E, a, and ε in two directions – parallel (axial direction, “||”) and perpendicular (transversal direction, “”) to the basal planes of illite/kaolinite crystals. Up to 500 °C, the ratio E||/E~2.9 and a||/a~2.0 for the illite-based samples and E||/E~6.9 and a||/a~2.7 for the kaolin samples. Above 800 °C, the anisotropy of E and a decrease, but do not disappear entirely even after the firing at 1200 °C. It was found, that the firing shrinkage is more significant in transversal direction, which is more pronounced in kaolin samples. The results were compared with hand molded and extruded samples, showing a very strong axial texture in extruded samples. Compared to illite, kaolin is more prone to develop a significant technological texture.

Název v anglickém jazyce

The influence of texture on elastic and thermophysical properties of kaolinand illite-based ceramic bodies

Popis výsledku anglicky

The influence of technological texture in illite- and kaolin-based ceramic bodies was studied on textured experimental samples. Strong texture was created by spreading (layering) a wet plastic mass. The texture was confirmed by XRD analysis. Anisotropy of Young's modulus (E), thermal diffusivity (a), and relative length changes (ε) was studied as a function of firing temperature in the interval 20–1200 °C. Anisotropy was assessed based on the values of E, a, and ε in two directions – parallel (axial direction, “||”) and perpendicular (transversal direction, “”) to the basal planes of illite/kaolinite crystals. Up to 500 °C, the ratio E||/E~2.9 and a||/a~2.0 for the illite-based samples and E||/E~6.9 and a||/a~2.7 for the kaolin samples. Above 800 °C, the anisotropy of E and a decrease, but do not disappear entirely even after the firing at 1200 °C. It was found, that the firing shrinkage is more significant in transversal direction, which is more pronounced in kaolin samples. The results were compared with hand molded and extruded samples, showing a very strong axial texture in extruded samples. Compared to illite, kaolin is more prone to develop a significant technological texture.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Ceramics International

ISSN

0272-8842

e-ISSN

1873-3956

Svazek periodika

43

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

7

Strana od-do

2730-2736

Kód UT WoS článku

000390732100152

EID výsledku v databázi Scopus

2-s2.0-85006515847