| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1296887 | Solid State Ionics | 2009 | 5 Pages |
Abstract
In the present study, the sintering of (ZrO2:8 mol%Y2O3)1 − m–(MgO)m, YSZ–mMg composites, with m in the 0–30 mol% range, has been investigated by impedance spectroscopy (IS), dilatometry, and X-ray diffraction. Impedance diagrams were collected at 400 °C after heating the green compacts up to a selected sintering temperature, which was increased stepwise from 800 to 1400 °C. The combined experimental results revealed that the samples can be separated in two categories: below and above the solubility limit of MgO in the YSZ (m ~ 10). Moreover, important microstructural features associated with both the sintering process and solid solution formation of YSZ–mMgO samples were correlated to the electrical properties inferred by IS.
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Authors
F.C. Fonseca, D.Z. de Florio, R. Muccillo,