| Autor: |
Prettyman, K. M., Jue, J. F., Virkar, A. V., Hubbard, C. R., Cavin, O. B., Ferber, M. K. |
| Zdroj: |
Journal of Materials Science; August 1992, Vol. 27 Issue: 15 p4167-4174, 8p |
| Abstrakt: |
Single-crystal and polycrystal samples of 3 mol % Y2O3-doped zirconia (t'-phase) were subjected to uniaxial compression tests at 1000°C in order to separate the effects of phase transformation (tetragonal-to-monoclinic) from ferroelastic domain switching. Plastic deformation was observed after an elastic regime, with attributes characteristic of domain switching. X-ray diffraction traces at room and high temperatures before and after the compression test verified that there was, indeed, a variant reorientation within each sample. Deformation bands were observed on single crystals, and Raman spectroscopy revealed that no monoclinic phase was present. These results verify the existence of ferroelastic domain switching phenomenon in this material. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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