Low-Frequency Dielectric Response of Epoxy-Based Polymer Composites
Bibliographic record
Abstract
The low-frequency dielectric response of polymeric materials, typically in the range of 10-5to 102Hz at room temperature, is related to various phenomena. Direct conduction, quasi DC conduction also known as low-frequency dispersion, alpha dipolar relaxation mechanisms, which are located in the low-frequency part of the spectrum for glassy polymers, are included in these phenomena and appeared generally below 1 Hz. The presence of a load, nano or micrometric in size, is known to significantly affect the low-frequency dielectric properties of the based matrix. New mechanisms related to the morphology and interfacial effects, such as the Maxwell-Wagner interfacial polarization, could then superimpose to the already existing relaxation mechanisms. In order to further investigate the low-frequency response of various reinforced epoxy-based composites, both time and frequency domain spectroscopy were conducted. Different types of epoxy microcomposites containing a high content of quartz, i.e. 60% wt. and microcomposites load with SiC particles, were prepared. Measurements were also performed on epoxy-mica composite made of paper-backed mica flakes bonded by the resin.
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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".