Stress Corrosion Cracking of Pure Copper under Possible Nuclear Fuel Waste Management Conditions
Bibliographic record
Abstract
This study investigated the effect of nitrite/chloride and ammonia/chloride concentrations, on the stress corrosion cracking (SCC) behaviour of oxygen free phosphorous doped (OFP) copper. Constant extension rate tests (CERTs) were performed at room temperature using a compact tension specimen. The findings are summarized as follow: A 1:1 ratio of nitrite to chloride suppressed SCC, as did an overabundance of chloride. The susceptibility of OFP copper to SCC in a deaearated 0.1 mol•L 1 nitrite solution appeared to decrease and the steady-state potential values became more negative with increasing chloride concentration. A 1:1 ratio of ammonia to chloride suppressed SCC, as did an overabundance of chloride. The addition of chloride in concentrations ≤0.5 mol•L 1 had little effect on the SCC behaviour. High chloride concentrations appeared to increase the uniform corrosion of OFP copper, which coincided with a blunting of the crack tip.
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How this classification was reachedexpand
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) | 0.014 | 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 teacher head, 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".