Defect structure of zirconium oxide nanosized powders with Y2O3, Sc2O3, Cr2O3 impurities

Author

Yurchenko, Lesya ; Bykov, Igor ; Vasylyev, A. ; Vereshchak, V. ; Suchaneck, G. ; Jastrabik, L. ; Dejneka, A.

Author_Institution

Institute for Problems of Materials Science, NASc, Kiev, Ukraine

fYear

2012

fDate

3-7 Sept. 2012

Firstpage

114

Lastpage

115

Abstract

Formation mechanisms of paramagnetic centers originating from Zr³⁺ and Cr³⁺ ions as well as the influence of composition of nanoparticles on thermogeneration processes of these paramagnetic centers in ZrO2 structure were studied. A set of nanosized powders of zirconium oxide was investigated by electron paramagnetic resonance method: nominally pure ZrO2; ZrO2 with Y2O3 and Sc2O3; ZrO2 with Cr2O3; ZrO2 with Y2O3 and Cr2O3. It is observed that the influence of annealing on EPR lines of Zr³⁺ and Cr³⁺ ions is different. Nuclear magnetic resonance data have shown that zirconium dioxide nanoparticles with Sc and Y impurities include two types of water molecules and two types of hydroxyl groups.

Keywords

Annealing; Impurities; Ions; Nanoparticles; Nuclear magnetic resonance; Powders; Zirconium; defects; electron paramagnetic resonance; impurities; nanosized powder; nuclear magnetic resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Oxide Materials for Electronic Engineering (OMEE), 2012 IEEE International Conference on

Conference_Location

Lviv, Ukraine

Print_ISBN

978-1-4673-4491-3

Type

conf

DOI

10.1109/OMEE.2012.6464776

Filename

6464776