Article
Deformation mechanisms in yttria-stabilized cubic zirconia single crystals
Author/s | Gallardo López, Ángela María
Gómez García, Diego Domínguez Rodríguez, Arturo |
Department | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Publication Date | 2010 |
Deposit Date | 2024-04-02 |
Published in |
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Abstract | This work attempts to give a unified picture of the microscopic mechanisms which control the plastic deformation in yttria-stabilized cubic zirconia single crystals, particularly for the soft orientation (uniaxial compression ... This work attempts to give a unified picture of the microscopic mechanisms which control the plastic deformation in yttria-stabilized cubic zirconia single crystals, particularly for the soft orientation (uniaxial compression along the [1̄* * *2] crystallographic axis) at low, intermediate and high temperatures while also reviewing and updating the existing data for different yttria contents (9.4-32 mol.%). The controlling deformation mechanisms are: internal friction within the crystal lattice (Peierls mechanism at low temperatures), pinning of dislocations by localized obstacles and long-range interaction between dislocations (intermediate temperatures) and dislocation viscous glide and climb (recovery creep) at higher temperatures. New aspects of the Portevin-le Chatelier phenomenon during viscous glide, due to the pinning and unpinning of dislocations from their defect clouds (yttrium substitutional atoms), are included. |
Funding agencies | Ministerio de Educación y Ciencia (MEC). España Junta de Andalucía |
Project ID. | MAT2009-14351-C02-01
MAT2009- 11078 337 FQM |
Citation | Gallardo López, Á.M., Gómez García, D. y Domínguez Rodríguez, A. (2010). Deformation mechanisms in yttria-stabilized cubic zirconia single crystals. International Journal of Materials Research, 101 (10), 1211-1214. https://doi.org/10.3139/146.110399. |
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