Design and Fracture of Layered Al <sub>2</sub> O <sub>3</sub> /TZ3Y Composites Produced by Electrophoretic Deposition
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Bibliographic record
Abstract
Alumina/yttria‐stablized tetragonal zirconia (Al 2 O 3 /TZ3Y) multilayer composites with strong interfaces and containing residual stresses were produced by electrophoretic deposition. As‐synthesized and Vickers‐indented samples with different layering designs have been tested in bending (up to 1300°C) to experimentally define conditions for crack deflection and flaw tolerance. The compressive residual stress in the Al 2 O 3 layers (ς r ) is a function of layer thickness ( t ). It was found that the parameter ς r 2 t is an effective indicator of the fracture behavior, as predicted by strain energy release calculations. With decreasing ς r 2 t , the fracture followed a sequence from spontaneous delamination, multistage fracture with extensive crack deflection, to catastrophic failure with, and finally without, deflection steps. Decrease of ς r with increasing test temperature causes changes in fracture behavior which correspond to the room‐temperature transitions of ς r 2 t .
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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