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

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About: Acoustic emission study of quartz porcelain during heating up to 1150 °C Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 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 α-quartz/-quartz). The α= 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 crystal interfaces between metakaolinite, feldspar and beta-quartz. 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 α-quartz/-quartz). The α= 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 crystal interfaces between metakaolinite, feldspar and beta-quartz. (en)
Title	Acoustic emission study of quartz porcelain during heating up to 1150 °C Acoustic emission study of quartz porcelain during heating up to 1150 °C (en)
skos:prefLabel	Acoustic emission study of quartz porcelain during heating up to 1150 °C Acoustic emission study of quartz porcelain during heating up to 1150 °C (en)
skos:notation	RIV/68407700:21110/12:00198454!RIV13-GA0-21110___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/11/1267), P(GBP105/12/G059)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Trník, Anton
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	120916
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/12:00198454
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Acoustic emission; Microcracks; Young's modulus; Quartz porcelain (en)
http://linked.open.../riv/klicoveSlovo	Microcracks Quartz porcelain Acoustic emission Young's modulus
http://linked.open...odStatuVydavatele	IT - Italská republika
http://linked.open...ontrolniKodProRIV	[B7C01773A33F]
http://linked.open...i/riv/nazevZdroje	Ceramics International
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Cumulative time dependent processes in building materials and structures Multiscale investigation of plastic deformation processes in materials by the acoustic emission technique
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	38
http://linked.open...iv/tvurceVysledku	Chmelík, F. Trník, Anton Štubňa, I. Šin, P.
http://linked.open...ain/vavai/riv/wos	000309645000111
issn	0272-8842
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ceramint.2012.05.021
http://localhost/t...ganizacniJednotka	21110

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