About: Characterization of point defects in yttria stabilized zirconia single crystals

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://iopscience.iop.org/1742-6596/262/1/012038
Description	Characterization of point defects in a fully stabilized ZrO2 + 9 mol.% Y2O3 single crystal with cubic structure was performed in this work. It was found that the crystal contains a high density of vacancy-like defects characterized by a lifetime of 175 ps. First principle theoretical calculations showed that this lifetime is comparable with lifetime of positrons trapped in zirconium vacancies associated with hydrogen. In particular, in the vicinity of the zirconium vacancy hydrogen forms an O-H bond with one of the nearest neighbour oxygen atoms. The calculated bond length is close to 1 Å. Using nuclear reaction analysis it was found that the hydrogen concentration in the crystal is 0.3 at.%. This amount of hydrogen is sufficient to form zirconium vacancy - hydrogen complexes capable of saturated positron trapping. Characterization of point defects in a fully stabilized ZrO2 + 9 mol.% Y2O3 single crystal with cubic structure was performed in this work. It was found that the crystal contains a high density of vacancy-like defects characterized by a lifetime of 175 ps. First principle theoretical calculations showed that this lifetime is comparable with lifetime of positrons trapped in zirconium vacancies associated with hydrogen. In particular, in the vicinity of the zirconium vacancy hydrogen forms an O-H bond with one of the nearest neighbour oxygen atoms. The calculated bond length is close to 1 Å. Using nuclear reaction analysis it was found that the hydrogen concentration in the crystal is 0.3 at.%. This amount of hydrogen is sufficient to form zirconium vacancy - hydrogen complexes capable of saturated positron trapping. (en)
Title	Characterization of point defects in yttria stabilized zirconia single crystals Characterization of point defects in yttria stabilized zirconia single crystals (en)
skos:prefLabel	Characterization of point defects in yttria stabilized zirconia single crystals Characterization of point defects in yttria stabilized zirconia single crystals (en)
skos:notation	RIV/00216208:11320/11:10070104!RIV12-AV0-11320___
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	2012
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	189987
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10070104
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	positron annihilation; single crystals; yttria stabilized zirconia; defects; Point (en)
http://linked.open.../riv/klicoveSlovo	single crystals Point defects positron annihilation yttria stabilized zirconia
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[ADA7E251EA08]
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	7 (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	2011
http://linked.open...v/svazekPeriodika	262
http://linked.open...iv/tvurceVysledku	Anwand, Wolfgang Brauer, Gerhard Grambole, Dieter Kuriplach, Jan Melikhova, Oksana Procházka, Ivan Čížek, Jakub
http://linked.open...ain/vavai/riv/wos	000292990500038
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1742-6588
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1742-6596/262/1/012038
http://localhost/t...ganizacniJednotka	11320

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