| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1448520 | Acta Materialia | 2008 | 9 Pages |
Abstract
Yttria-stabilized zirconia strengthened with lamellar flaky-shape Nb metal particles was obtained by hot-pressing at 1500 °C for 1 h. The ZrO2–Nb interface has been studied by atomistic, first-principles calculations and by high-resolution transmission electron microscopy. The influence of the ceramic–metal interface on the crack growth resistance has been investigated. Crack growth is shown to occur with a rising resistance, governed by intact metal ligaments in the crack wake. Crack extension occurs by a combination of plastic deformation on the metal particles and interface debonding. The connection between the interface adhesion and this microstructural toughening mechanism has been evaluated.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.F. Bartolomé, J.I. Beltrán, C.F. Gutiérrez-González, C. Pecharromán, M.C. Muñoz, J.S. Moya,