About: High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation

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About: High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation Goto Sponge Distinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Young's moduli of talc-based ceramics from the system MgO-Al2O3-SiO2 are measured for temperatures up to 1000 °C via impulse excitation. It is shown that, after pressing at 50 MPa and firing at 1280 °C, MgO-rich compositions exhibit higher porosity and lower Young's moduli (approximately 20-30 % lower than predicted via micromechanical relations). The Young moduli of materials with less MgO decrease with temperature, but those of MgO-rich ceramics increase with temperature and exhibit a large hysteresis between heating and cooling. Lower absolute values are mainly due to increased porosity, but the reason for the modulus increase with temperature and the hysteresis is the higher enstatite content in the MgO-rich compositions. For a special composition the Young's moduli are more or less temperature-independent and without significant hysteresis effects, probably due to the low content of enstatite and the high content of sapphirine. Young's moduli of talc-based ceramics from the system MgO-Al2O3-SiO2 are measured for temperatures up to 1000 °C via impulse excitation. It is shown that, after pressing at 50 MPa and firing at 1280 °C, MgO-rich compositions exhibit higher porosity and lower Young's moduli (approximately 20-30 % lower than predicted via micromechanical relations). The Young moduli of materials with less MgO decrease with temperature, but those of MgO-rich ceramics increase with temperature and exhibit a large hysteresis between heating and cooling. Lower absolute values are mainly due to increased porosity, but the reason for the modulus increase with temperature and the hysteresis is the higher enstatite content in the MgO-rich compositions. For a special composition the Young's moduli are more or less temperature-independent and without significant hysteresis effects, probably due to the low content of enstatite and the high content of sapphirine. (en)
Title	High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation (en)
skos:prefLabel	High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation High-temperature elastic properties of ceramics in the system MgO-Al2O3-SiO2 measured by impulse excitation (en)
skos:notation	RIV/60461373:22310/14:43898420!RIV15-GA0-22310___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(7AMB12AR015), P(GAP108/12/1170)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Musilová, Anna Gregorová, Eva Pabst, Willi
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	19172
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/14:43898420
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sapphirine; spinel; cristobalite; protoenstatite; mullite; alumina; talc; kaolin; impulse excitation; tensile modulus (Young's modulus); elastic properties; Cordierite ceramics (en)
http://linked.open.../riv/klicoveSlovo	cristobalite mullite elastic properties talc spinel kaolin impulse excitation alumina Cordierite ceramics protoenstatite sapphirine tensile modulus (Young's modulus)
http://linked.open...ontrolniKodProRIV	[BA282786B0CF]
http://linked.open...v/mistoKonaniAkce	Brno (Czech Republic)
http://linked.open...i/riv/mistoVydani	Zürich
http://linked.open...i/riv/nazevZdroje	Selected, peer reviewed papers from the 7th International Conference on Materials Structure and Micromechanics of Fracture MSMF7
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Porous Ceramics with Tailored Elasticity and Thermal Conductivity Porous silicate ceramics prepared with starch and starch-based products - from optimized preparation to advanced characterization
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Gregorová, Eva Musilová, Anna Pabst, Willi Camerucci, Maria Andrea Sandoval, Maria Laura Talou, Mariano Hernán
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2013-07-01 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Trans Tech Publications
https://schema.org/isbn	978-3-03785-934-6
http://localhost/t...ganizacniJednotka	22310

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