Electrochemical Impedance Spectroscopy of Ba<sub>2</sub>In<sub>2</sub>O<sub>5</sub>: Effect of Porosity, Grain Size, Dopant, Atmosphere and Temperature
Bibliographic record
Abstract
Electrochemical impedance spectroscopy was used to investigate the electrical properties of Ba2In2O5 and the effect of porosity, dopant (Ce), atmosphere, temperature, and grain size on these properties. The effect of dopant was investigated by comparing the results of undoped Ba2In2O5 samples to Ce-doped Ba2In2O5 samples. Effect of grain size for both compositions was studied by comparing the samples made by the glycine-nitrate method, which resulted in smaller grain sizes, and the samples made by the solid-state process, which resulted in larger grain sizes. Porosity effects were determined by testing the samples with different porosities between 20 percent and 50 percent. All samples were tested in two different atmospheres, air and 50 percent H2/50 percent N2, and at different temperatures in the range from 100◦C to 500◦C. The study contributed to better understanding of the conducting mechanisms of Ba2In2O5 in air and hydrogen-containing atmospheres.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| 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 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".