Temperature effects on the passivity breakdown of copper in chloride‐containing borate buffer solution
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract Passivity and passivity breakdown of pure copper were studied in alkaline chloride‐containing borate buffer solution from 25°C to 80°C by electrochemical measurements and scanning electron microscopy. The corresponding E –pH diagrams were also calculated. Increased temperatures make the open circuit potential and formation potential for cuprous oxide (Cu 2 O) shift in a negative direction. The mean breakdown potential shifts in a positive direction and the distribution of breakdown potential has a wider width, while the minimum breakdown potential decreases slightly at higher temperature. The anodic passive film formed at 0.4 V versus Ag/AgCl for 6 h in a chloride‐free solution at T ≥ 40°C can maintain passivity after the addition of 0.1 M NaCl, but cannot maintain passivity at 25°C at the same concentration. High temperature benefits the growth of copper oxide over the formation of copper chloride species. Cu 2 O and CuO have excellent corrosion resistance to 0.1 M NaCl and passivity can be maintained well above the CuO/Cu 2 O equilibrium at pH > 8.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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