The Effect of Cracks on the In‐plane Electrical Conductivity of PEFC Catalyst Layers
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Bibliographic record
Abstract
Abstract Fuel cell catalyst layers are a mixture of carbon, ionomer and platinum that are usually applied to the membrane during electrode assembly and can vary in structure for a number of reasons including the method of application, thickness of the layer, milling and heat treatments. Under some conditions significant cracking can occur which may or may not be beneficial to overall fuel cell performance but certainly has an effect on the catalyst's effective transport properties. The influence of cracking on the in‐plane electrical conductivity is studied experimentally and numerically through an image‐based approach. The conductivity is found to depend strongly on the crack structure which can be predicted with image based modelling. This fact is useful for determining the bulk conductivity from cracked samples for diagnostic purposes.
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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 | 0.001 |
| 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