Influence of the Nature of the Contact Electrode on the Conductivity Measurements of Doped Ceria
Bibliographic record
Abstract
Gadolinia doped ceria powders were prepared by the oxalate coprecipitation technique and pellets of these powders were sintered for 10 h at 1400°C. The impedance spectra were taken at temperatures ranging from 150°C to 800°C with different contact electrodes. Gold, platinum and silver from commercial paints and inks as well as sputtered platinum and La 0.8 Sr 0. 2 Co 0. 8 Fe 0. 2 O 3 were used as contact electrodes. The total conductivities at temperatures higher than 500°C were roughly the same except when sputtered platinum electrodes were used. At lower temperatures, however, there is significant difference in the conductivity. While the grain interior resistivities are approximately the same regardless of the electrode nature, the grain boundary resistances are strongly influenced by the electrode nature.
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".