Influence of Alumina (Al2O3) Nanosized Reinforcements on Dimensional Stability of Pure Aluminum Matrix Nanocomposite
Bibliographic record
Abstract
The current study evaluates the influence of aluminum oxide Al2O3 particle size on the dimensional stability of pure aluminum matrix.Three composites reinforced with 2.5, 5, and 7.5 Vol.% Al2O3 and particle sizes (25 μm, 5 μm, and 70 nm) were fabricated using a high-energy ball mill.The standard samples were fabricated using powder metallurgy method.The samples were heated from room temperature up to 500•C in a dilatometer at different heating rates, that is, 10, 30, 40, and 60•C/min.The results showed that for all composites, there was an increase in length change as temperature increased and the temperature sensitivity of aluminum decreased in the presence of both micro-and nanosized Al2O3.At the same condition, dimensional stability of Al/Al2O3 nanocomposite was better than conventional Al/Al2O3 composites.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".