A Study of Mechanical Behavior of Polycarbonate Nanocomposites Using Molded Disk Specimens
Bibliographic record
Abstract
This paper presents an experimental study of the mechanical behavior of polycarbonate modified with boron nitride nanotubes, an emerging type of nanotube with extraordinary mechanical performance that is optically transparent. Using molded disk specimens with the same geometry, equibiaxial flexural, supported punch shear, and low-speed impact tests were performed to determine the flexural stiffness, punch shear strength, and impact performance of nanocomposites. Polycarbonate nanocomposite samples with different nanotube content (up to 1 wt%) were investigated. Within the scope of the study, mechanical properties of the nanocomposite samples exhibited only very limited variations depending on the reinforcement content; however, noticeable improvement in flexural stiffness and dissipated energy in punch shear were observed, with the low-speed impact performance remaining essentially unchanged. In addition, the complex failure behavior in punch shear was studied with the aid of scanning electron microscopy and the preliminary results are reported.
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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".