Mechanical properties of ytterbia stabilized zirconia ceramics (Yb-TZP) fabricated from powders prepared by co-precipitation method

Authors
Nakayama, S Maekawa, S Sato, T Masuda, Y Imai, S Sakamoto, M
Citation
S. Nakayama et al., Mechanical properties of ytterbia stabilized zirconia ceramics (Yb-TZP) fabricated from powders prepared by co-precipitation method, CERAM INT, 26(2), 2000, pp. 207-211
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
CERAMICS INTERNATIONAL
ISSN journal
02728842 → ACNP
Volume
26
Issue
2
Year of publication
2000
Pages
207 - 211
Database
ISI
SICI code
0272-8842(2000)26:2<207:MPOYSZ>2.0.ZU;2-Q
Abstract
2.0, 2.4, 2.6, 3.0 and 3.5 mol% Yb2O3-doped tetragonal zirconia polycrystal s (Yb-TZP) were fabricated and their mechanical properties [three-points be nding strength (sigma(f)), Vickers hardness (H-v) and fracture toughness (K -1C)] were measured. The value of sigma(f) was the highest for the 2.6 mol% Yb2O3-doped sample. The H-v-value increased and the K-1C-value decreased, as the Yb2O3 content increased. The comparison of these mechanical properti es with those of the corresponding Y2O3-doped zirconia (Y-TZP) revealed the excellence of Yb-TZP, though slight. (C) 2000 Elsevier Science Ltd and Tec hna S.r.l. All rights reserved.