About: Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures

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About: Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The elastic moduli (Young moduli) of alumina and zirconia ceramics with porosities ranging from almost dense (2-3 %) to highly porous (46-52 %), the latter prepared with starch as a pore-forming agent, have been measured via impulse excitation and four-point bending tests from room temperature up to more than 1200 °C. It is shown that, independent of the temperature and the material, the porosity dependence of the Young?s modulus is well predicted by our exponential relation and that, irrespective of porosity, the temperature dependence follows a master curve that is characteristic of the material (for alumina exhibiting a decrease with a gradually growing tangent slope and for zirconia exhibiting a steep decrease with an inflection point at moderately elevated temperatures below 400 °C). Differences between isothermal (static) and adiabatic (dynamic) values are negligible as long as the materials are purely elastic (i.e. at temperatures below approximately 1000 °C). The elastic moduli (Young moduli) of alumina and zirconia ceramics with porosities ranging from almost dense (2-3 %) to highly porous (46-52 %), the latter prepared with starch as a pore-forming agent, have been measured via impulse excitation and four-point bending tests from room temperature up to more than 1200 °C. It is shown that, independent of the temperature and the material, the porosity dependence of the Young?s modulus is well predicted by our exponential relation and that, irrespective of porosity, the temperature dependence follows a master curve that is characteristic of the material (for alumina exhibiting a decrease with a gradually growing tangent slope and for zirconia exhibiting a steep decrease with an inflection point at moderately elevated temperatures below 400 °C). Differences between isothermal (static) and adiabatic (dynamic) values are negligible as long as the materials are purely elastic (i.e. at temperatures below approximately 1000 °C). (en)
Title	Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures (en)
skos:prefLabel	Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures Isothermal and adiabatic Young's moduli of alumina and zirconia ceramics at elevated temperatures (en)
skos:notation	RIV/60461373:22310/13:43895868!RIV14-GA0-22310___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/1170)
http://linked.open...iv/cisloPeriodika	15-16
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Gregorová, Eva Pabst, Willi
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	Vysoká škola chemicko-technologická v Praze / Fakulta chemické technologie
http://linked.open...dnocenehoVysledku	81324
http://linked.open...ai/riv/idVysledku	RIV/60461373:22310/13:43895868
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	elastic modulus (Young modulus); Zirconia (ZrO2); Alumina (Al2O3); Porosity; Mechanical properties (en)
http://linked.open.../riv/klicoveSlovo	Alumina (Al2O3) Zirconia (ZrO2) elastic modulus (Young modulus) Mechanical properties Porosity
http://linked.open...odStatuVydavatele	BE - Belgické království
http://linked.open...ontrolniKodProRIV	[E2D9E3D62DA4]
http://linked.open...i/riv/nazevZdroje	Journal of the European Ceramic Society
http://linked.open...in/vavai/riv/obor	JH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Porous Ceramics with Tailored Elasticity and Thermal Conductivity
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	33
http://linked.open...iv/tvurceVysledku	Černý, Martin Gregorová, Eva Pabst, Willi
issn	0955-2219
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.jeurceramsoc.2013.06.012
http://localhost/t...ganizacniJednotka	22310

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