Ball Milled Si-W Alloys: Part I. Microstructural and Phase Evolution during Ball Milling
Bibliographic record
Abstract
In this first part of a two-part study of the synthesis, microstructure and electrochemical properties of ball milled silicon-tungsten alloys (Si 100-x W x , x = 15, 20, 25, 30), the ball milling process is discussed in detail. The phase evolution was quantitatively followed during milling, allowing for a detailed understanding of the ball milling process. A volume element model of the process was developed that uses only three parameters that are directly related to the milling conditions. This model was found to well explain the ball milling process and suggests that energy initially accumulates in the Si and W powders after every ball collision. Eventually the stored energy overcomes activation energy for the reaction of Si and W to form Si 2 W. The kinetics of these processes and the tendency for reactants to cake in the mill are important parameters to consider for the practical synthesis of different Si-metal alloy materials.
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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".