Effect of cryolite on formation of Al <sub>2</sub> O <sub>3</sub> /Al composites produced by oxidation of molten Al–Mg alloy
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Bibliographic record
Abstract
AbstractThe oxidation of molten Al–5 wt-%Mg and Al–5 wt-%Mg–0·5 wt-%cryolite (Na3AlF6) has been investigated by carrying out crucible corrosion tests under thermal gradient conditions. Two morphologies of Al2O3/Al composite were observed: ‘large balls’ in the absence of cryolite; and small mushrooms in the presence of this salt. Microstructural analysis and thermogravimetric measurements were also carried out to study the effect of cryolite on the oxidation mechanism. The results showed that both composite morphologies are the result of the same directed metal oxidation (DIMOX) process (DIMOX is a trademark of Lanxide Corporation, Newark, DE). Thermogravimetric analysis also confirmed that two morphologies formed under different oxidation kinetic conditions.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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