About: Investigation of hydrogen interaction with defects in zirconia

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Defect studies of a ZrO2 + 9 mol. % Y2O3 single crystal were performed in this work using a high resolution positron lifetime spectroscopy combined with slow positron implantation spectroscopy. Ab initio theoretical calculations indicated that zirconium vacancies are the only deep positron traps and are most probably responsible for the saturated positron trapping observed in yttria stabilized zirconia single crystals. The calculated positron lifetime for zirconium vacancy is apparently longer than the experimental value. This effect can be explained by hydrogen trapped in zirconium vacancies. On the basis of structure relaxations, we found that zirconium vacancy - hydrogen complexes represent deep positron traps with the calculated lifetime close to the experimental one. In zirconium vacancy - hydrogen complexes the hydrogen atom forms an O-H bond of 1 A length with one of the nearest neighbour oxygen atoms. Defect studies of a ZrO2 + 9 mol. % Y2O3 single crystal were performed in this work using a high resolution positron lifetime spectroscopy combined with slow positron implantation spectroscopy. Ab initio theoretical calculations indicated that zirconium vacancies are the only deep positron traps and are most probably responsible for the saturated positron trapping observed in yttria stabilized zirconia single crystals. The calculated positron lifetime for zirconium vacancy is apparently longer than the experimental value. This effect can be explained by hydrogen trapped in zirconium vacancies. On the basis of structure relaxations, we found that zirconium vacancy - hydrogen complexes represent deep positron traps with the calculated lifetime close to the experimental one. In zirconium vacancy - hydrogen complexes the hydrogen atom forms an O-H bond of 1 A length with one of the nearest neighbour oxygen atoms. (en)
Title	Investigation of hydrogen interaction with defects in zirconia Investigation of hydrogen interaction with defects in zirconia (en)
skos:prefLabel	Investigation of hydrogen interaction with defects in zirconia Investigation of hydrogen interaction with defects in zirconia (en)
skos:notation	RIV/00216208:11320/10:10070081!RIV11-MSM-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB101120906), P(OC 165), Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Melikhova, Oksana Procházka, Ivan Kuriplach, Jan Čížek, Jakub
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	264820
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10070081
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	zirconia; defects; Hydrogen (en)
http://linked.open.../riv/klicoveSlovo	defects Hydrogen zirconia
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[5B07F0A8BB5D]
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20165 Hydrogen interaction with defects in zirconia
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	225
http://linked.open...iv/tvurceVysledku	Anwand, Wolfgang Brauer, Gerhard Kuriplach, Jan Melikhova, Oksana Procházka, Ivan Čížek, Jakub
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1742-6588
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	11320

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