Injection of charge carriers and space charge build-up in fluoropolymer dielectrics
Bibliographic record
Abstract
This study concerns the injection of charge carriers and space charge build-up in fluoropolymer films by the thermally stimulated discharge (TSD) current method. Poling fields ranging from 2.5 to 20 MV m/sup -1/ are employed with the heating rates of 0.5-2 K min/sup -1/ over the temperature range of 0-200/spl deg/C for TSD experiments. Silver and aluminum electrodes are employed to study the role of the cathode in the injection mechanism. The TSD currents are observed to depend on the cathode material. The magnitude of current peak and the total charge released to the external circuit with both electrode materials show a saturating trend with the poling field. This observation is consistent with the suggested mechanism of charge injection from electrodes and the space charge build up in the material. Relaxation times in the range of 4-6000 s are observed over the temperature range. Mechanisms of space charge build-up are also discussed.
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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 | 0.000 | 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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".