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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10132603" target="_blank" >RIV/00216208:11320/12:10132603 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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 heating up to 1150 degrees C with a heating rate of 5 degreesC/min. Two sources of microcracking were identified. The first one, which begins at a temperature of 50 degrees 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 alpha-quartz/beta-quartz). The alpha -> beta transformation of quartz is not detected with AE. The vanishing of cracking at 600 degrees C correlates with the increase of the Young's modulus and is ascribed to solid-state sintering, which fortifies crystal interfaces between metakaolinite, feldspar and beta-quartz. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GAP108%2F11%2F1267" target="_blank" >GAP108/11/1267: Multiscale investigation of plastic deformation processes in materials by the acoustic emission technique</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

Ceramics International

ISSN

0272-8842

e-ISSN

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Volume of the periodical

38

Issue of the periodical within the volume

8

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

6919-6922

UT code for WoS article

000309645000111

EID of the result in the Scopus database

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