Effect of gas temperature on the microstructure and properties of cold sprayed copper coatings
Why this work is in the frame
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Bibliographic record
Abstract
Cold spray is a relatively new coating technology by which metallic coatings can be produced using low-temperature (300-800 °C) processing gas and high-velocity (500-1200 m/s) powder particles. In this paper, copper coatings were produced under the same gas pressure but different gas temperatures (100, 200, 400 and 600 °C). The properties and microstructure of assprayed coatings were tested and characterized to investigate the effect of gas temperature. We found that in higher gas temperature the deposition efficiency is increased and the porosity is decreased. The microhardness of the coatings can be decreased with increasing gas temperature, which is interpreted in terms of recrystallization in the cold spray process.
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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