The Formation of Microcracks in Water-Saturated Porous Ceramics During Freeze-Thaw Cycles Followed by Acoustic Emission

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00363908" target="_blank" >RIV/68407700:21340/21:00363908 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/21:00539475 RIV/61389005:_____/21:00539475 RIV/00216208:11320/21:10437849

Výsledek na webu

<a href="https://doi.org/10.1007/s10921-020-00748-4" target="_blank" >https://doi.org/10.1007/s10921-020-00748-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10921-020-00748-4" target="_blank" >10.1007/s10921-020-00748-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Formation of Microcracks in Water-Saturated Porous Ceramics During Freeze-Thaw Cycles Followed by Acoustic Emission

Popis výsledku v původním jazyce

The acoustic emission (AE) technique was employed to monitor crack formation in the water-saturated ceramic material subjected to freeze-thaw cycles. The samples with water accessible porosity ranging from 6 to 50 vol% were prepared from the illite-rich clay by the sacrificing template method. The experimental samples were fired to 1100 degrees C in the static air atmosphere. Afterward, they were saturated with distilled water and subjected to the freeze-thaw cycles in the temperature range from - 22 to 20 degrees C. The AE signals occurred repeatedly during freeze-thaw cycling and they were attributed to the formation of microcracks in the ceramic body. The intensity of microcracking increased with increasing porosity. The microcracks were created primarily during the freezing stages of the experiment. Nevertheless, a considerable number of microcracks also appeared during thawing, especially in the ceramic body with pores below 1 mu m. The microcracking during thawing was attributed to the reabsorption of water by tiny pores.

Název v anglickém jazyce

The Formation of Microcracks in Water-Saturated Porous Ceramics During Freeze-Thaw Cycles Followed by Acoustic Emission

Popis výsledku anglicky

The acoustic emission (AE) technique was employed to monitor crack formation in the water-saturated ceramic material subjected to freeze-thaw cycles. The samples with water accessible porosity ranging from 6 to 50 vol% were prepared from the illite-rich clay by the sacrificing template method. The experimental samples were fired to 1100 degrees C in the static air atmosphere. Afterward, they were saturated with distilled water and subjected to the freeze-thaw cycles in the temperature range from - 22 to 20 degrees C. The AE signals occurred repeatedly during freeze-thaw cycling and they were attributed to the formation of microcracks in the ceramic body. The intensity of microcracking increased with increasing porosity. The microcracks were created primarily during the freezing stages of the experiment. Nevertheless, a considerable number of microcracks also appeared during thawing, especially in the ceramic body with pores below 1 mu m. The microcracking during thawing was attributed to the reabsorption of water by tiny pores.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

—

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 Nondestructive Evaluation

ISSN

0195-9298

e-ISSN

1573-4862

Svazek periodika

40

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000605636800001

EID výsledku v databázi Scopus

2-s2.0-85098883257