The effect of tetravalent dopants on the unit cell volume of 2Y-TZP and 8Y-SZ

The effects of tetravalent cations on tetragonal zirconia and cubic zirconia were evaluated by investigating lattice parameter variation. XRD observation was made on 2Y-TZP (2 mol% Y 2O 3-stabilized tetragonal zirconia polycrystals) and 8Y-SZ (8 mol% Y 2O 3-stabilized zirconia) doped with CeO 2, SnO...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2004-03, Vol.58 (7), p.1160-1163
Main Authors: Jang, Ju-Woong, Kim, Hak-Kwan, Lee, Deuk-Yong
Format: Article
Language:English
Subjects:
Cations
Dopants
Zirconia
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effects of tetravalent cations on tetragonal zirconia and cubic zirconia were evaluated by investigating lattice parameter variation. XRD observation was made on 2Y-TZP (2 mol% Y 2O 3-stabilized tetragonal zirconia polycrystals) and 8Y-SZ (8 mol% Y 2O 3-stabilized zirconia) doped with CeO 2, SnO 2 and TiO 2. The contents of the tetravalent dopants increased within the solubility limits of the dopants in 2Y-TZP and 8Y-SZ. The ionic radii of the Ti 4+, Sn 4+, Zr 4+ and Ce 4+ for eight-fold coordination with oxygen ions are 0.74, 0.81, 0.84 and 0.97 Å, respectively. The unit cell volumes of cubic zirconias are in proportion to the ionic radii of dopant cations but the unit cell volumes of tetragonal zirconias are not.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2003.08.038