About: Microstructure of Yttria-Stabilized Zirconia Nanomaterials Studied by Positron Annihilation Spectroscopy

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Investigations of several yttria-stabilized zirconia (YSZ) pressure-compacted nanopowders are reported. Positron annihilation spectroscopy is employed as the main experimental tool. The defects associated with grain boundaries (GB''s), the mean grain size and its growth during sintering nanopowders, the nanoporosity, an influence of the material composition on the final microstructure and a possible segregation of different kinds of atoms at GB''s are discussed. The main attention will be focused on the role of chromia addition to YSZ. Positrons are trapped predominantly (i) in the monovacancy-like defects situated along GB''s or (ii) at the triple junctions of GB''s. PAS is then used for estimation of grain size. A small amount of chromia additive is shown to lead to a lower mean grain size of the initial YSZ nanopowders. Investigations of several yttria-stabilized zirconia (YSZ) pressure-compacted nanopowders are reported. Positron annihilation spectroscopy is employed as the main experimental tool. The defects associated with grain boundaries (GB''s), the mean grain size and its growth during sintering nanopowders, the nanoporosity, an influence of the material composition on the final microstructure and a possible segregation of different kinds of atoms at GB''s are discussed. The main attention will be focused on the role of chromia addition to YSZ. Positrons are trapped predominantly (i) in the monovacancy-like defects situated along GB''s or (ii) at the triple junctions of GB''s. PAS is then used for estimation of grain size. A small amount of chromia additive is shown to lead to a lower mean grain size of the initial YSZ nanopowders. (en)
Title	Microstructure of Yttria-Stabilized Zirconia Nanomaterials Studied by Positron Annihilation Spectroscopy Microstructure of Yttria-Stabilized Zirconia Nanomaterials Studied by Positron Annihilation Spectroscopy (en)
skos:prefLabel	Microstructure of Yttria-Stabilized Zirconia Nanomaterials Studied by Positron Annihilation Spectroscopy Microstructure of Yttria-Stabilized Zirconia Nanomaterials Studied by Positron Annihilation Spectroscopy (en)
skos:notation	RIV/00216208:11320/11:10069881!RIV12-AV0-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KAN300100801), P(KJB101120906), Z(MSM0021620834)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Melikhova, Oksana Procházka, Ivan Kuriplach, Jan Čížek, Jakub
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	212386
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/11:10069881
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Positron Annihilation Spectroscopy.; Nanomaterials; Yttria-Stabilized Zirconia (en)
http://linked.open.../riv/klicoveSlovo	Nanomaterials Positron Annihilation Spectroscopy. Yttria-Stabilized Zirconia
http://linked.open...ontrolniKodProRIV	[9140B0809A94]
http://linked.open...v/mistoKonaniAkce	Olomouc, Česká republika
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	2nd International Conference NANOCON 2010
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	Multifunctional bulk metallic materials with nanocrystalline and ultrafine-grained structure Hydrogen interaction with defects in zirconia
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Kuriplach, Jan Melikhova, Oksana Procházka, Ivan Čížek, Jakub Danilenko, Igor A. Konstantinova, Tatyana E.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000286656400025
http://linked.open.../riv/zahajeniAkce	2010-10-12 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger, Ltd.
https://schema.org/isbn	978-80-87294-19-2
http://localhost/t...ganizacniJednotka	11320

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