Effects of fiber volume fraction and thermal treatment on the properties of C/C composites
Bibliographic record
Abstract
The hardness of C/C composites is reinforced with the increasing of the fiber volume fraction. When the carbon fiber volume fraction is over 30%, the hardness of C/C composites keeps constant. The bending strength of C/C composites is reinforced with the increasing of the fiber volume fraction. High fiber volume fraction results in smaller holes in preforms which can not be well filled by pyrocarbon, so the bending strength will decline. Therefore, there is an inflexion with the increasing of the fiber volume fraction. There are three fracture mechanisms-brittle fracture, pseudo plastic fracture by which whole bundle fiber are drawn, and pseudo plastic fracture by which portion fiber are put out, in accordance with the variation of the thermal treatment temperature of fibers. C/C composites with excellent mechanical properties were obtained after heat treatment of carbon fibers at 1600℃.
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How this classification was reachedexpand
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 | 0.000 | 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 teacher head, 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".