Erosion Suppression of Zinc Borate Filler in HTV Silicone Rubber Under AC Dry-Band Arcing
Bibliographic record
Abstract
This paper investigates the erosion suppression mechanisms of Zinc Borate in high-temperature vulcanized silicone rubber using the IEC 60587 inclined plane test and simultaneous thermogravimetric-differential thermal analysis. Alumina tri-hydrate is employed in this study as a reference filler for comparison with Zinc Borate filler. The dehydration of Zinc Borate is reported to start around 350°C, whereas alumina tri-hydrate starts dehydration at lower temperatures around 230°C. An insignificant difference is shown in the erosion resistance between the alumina tri-hydrate and Zinc Borate-filled composites. Both fillers are shown viable in preventing the tracking and erosion failure in the IEC 60587 inclined plane test under the critical 4.5kV ACrmsvoltage. Zinc Borate is found to suppress failure with the formation of residue acting as a shield against the progression of erosion. Whereas, alumina tri-hydrate alleviates surface temperature by promoting an internal oxidation mechanism that suppresses combustion of silicone rubber. This study's findings highlight the potential application of Zinc Borate as a cost-effective filler in high-temperature vulcanized silicone rubber for outdoor insulation, particularly in regions where this filler is readily available.
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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 | 0.000 |
| 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".