Atomistic simulation of nanoindentation into copper multilayers
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Bibliographic record
Abstract
Atomic-scale simulations are used to examine the plastic behaviour of copper multi-layered thin films during nanoindentation tests. It is found that glide of nucleated dislocation loops and slip in the grain boundaries are the main operating deformation mechanisms in such multi-layered polycrystals. Furthermore, for a very small layer thickness, slip in the grain boundary dominates over the dislocation mediated plasticity. In order to survey the resistance of a multi-layered metal thin film to plastic deformation during nanoindentation, hardness versus penetration depth curves are plotted. Hardness curves reveal softening of multi-layer films, i.e. a reverse Hall–Petch effect is found for layer thicknesses in the nanometre range.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 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