An investigation regarding semiconducting and passive behaviors of coarse- and nano-structured pure Ta in Ringer’s physiological electrolyte: role of anodic passive potential
Why this work is in the frame
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Bibliographic record
Abstract
Through this survey, by the application of magnetron sputtering technique, an unprecedented nano-structured (NS) α-Ta was coated on Ti substrate. The provided coating was fully dens, homogeneous in microstructure and with crystals preferable to specific plane of (110). Employing comprehensive electrochemical evaluations, the formed passive layer on the α-Ta coating and pure uncoated Ta in the Ringer's electrolyte at 37 °C were compared in various aspects including the electrochemical response, semiconductivity, donor density (ND) and the point defects diffusivity (D0). The α-Ta coated sample showed much higher corrosion resistance in Ringer's electrolyte than the bare Ta. Moreover, Mott–Schottky analysis revealed a reduced ND in the passive layer formed on the α-Ta coating compared to that of the pure Ta. The calculated quantities of D0 for the α-Ta coating (1.06 × 10−17 cm2 s−1) are more than values of the pure Ta (0.94 × 10−17 cm2 s−1). The enhanced corrosion resistant behavior of α-Ta coating in the simulated body environment, compared to the pure Ta specimen, can be attributed to the formation of nano-scale microstructure and the crystallographic texture in the coated sample that accelerates the formation of a sturdy and ameliorated passive film with denser structure.
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Direct model labels (unvalidated)
Per-model category and study-design labels from the labeling rounds. They are machine output, unvalidated, and the disagreement between models ships as data. No study design here is MEDLINE-validated yet.
| Model arm | Categories | Study design | Confidence |
|---|---|---|---|
| gemma | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Bench or experimental | low |
| gpt | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Bench or experimental | medium |
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 | 0.001 |
| 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