Degradation of Spark Plasma Sintered Yttria Stabilized Zirconia (YSZ) and CeO <sub>2</sub> ‐YSZ Ceramics in Supercritical Water
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Bibliographic record
Abstract
Zirconia ceramics are often considered in the nuclear industry for high temperature applications due to their radiation resistance, chemical inertness, high thermal stability and low thermal conductivity. However, wide application of zirconia ceramics is hindered by their degradation behavior in aqueous media. In this research, moderately dense 8 mol% Yttria Stabilized Zirconia ( YSZ ) as well as YSZ based ceramics containing 5, 10 and 15 mol% CeO 2 were fabricated via Spark Plasma Sintering ( SPS ). Sintered ceramics were subjected to static degradation testing in supercritical water at 400°C and 31 MPa. The weight loss and microstructural changes of the ceramics associated with supercritical water exposure were studied, and the results suggest that the addition of CeO 2 significantly reduced the degradation rate and improved the bulk structural stability of the ceramic composite. This behavior was attributed to the enhanced stabilization of the zirconia lattice, preventing the evolution of the undesirable monoclinic‐ ZrO 2 phase.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it