Acoustic emission study of quartz porcelain during heating up to 1150 °C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00198454" target="_blank" >RIV/68407700:21110/12:00198454 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.05.021" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2012.05.021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2012.05.021" target="_blank" >10.1016/j.ceramint.2012.05.021</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic emission study of quartz porcelain during heating up to 1150 °C

Popis výsledku v původním jazyce

The acoustic emission (AE) technique was used for the real-time monitoring of microcracking in a green quartz porcelain mixture (50 wt% kaolin, 25 wt% quartz and 25 wt% feldspar) subjected to heatings up to 1150 °C with a heatings rate of 5 °C/min. Two sources of microcracking were identified. The first one, which begins at a temperature of 50 °C, is connected to the liberation of physically bound water. The second source is caused by differences between the thermal expansion of crystals (kaolinite/metakaolinite, feldspar and ?-quartz/-quartz). The ?= transformation of quartz is not detected with AE. The vanishing of cracking at 600 °C correlates with the increase of the Young's modulus and is ascribed to solid-state sintering, which fortifies crystalinterfaces between metakaolinite, feldspar and beta-quartz.

Název v anglickém jazyce

Acoustic emission study of quartz porcelain during heating up to 1150 °C

Popis výsledku anglicky

The acoustic emission (AE) technique was used for the real-time monitoring of microcracking in a green quartz porcelain mixture (50 wt% kaolin, 25 wt% quartz and 25 wt% feldspar) subjected to heatings up to 1150 °C with a heatings rate of 5 °C/min. Two sources of microcracking were identified. The first one, which begins at a temperature of 50 °C, is connected to the liberation of physically bound water. The second source is caused by differences between the thermal expansion of crystals (kaolinite/metakaolinite, feldspar and ?-quartz/-quartz). The ?= transformation of quartz is not detected with AE. The vanishing of cracking at 600 °C correlates with the increase of the Young's modulus and is ascribed to solid-state sintering, which fortifies crystalinterfaces between metakaolinite, feldspar and beta-quartz.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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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

2012

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

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Svazek periodika

38

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

4

Strana od-do

6919-6922

Kód UT WoS článku

000309645000111

EID výsledku v databázi Scopus

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