Manufacturing Process for in Situ Reaction-Bonded Porous SiC Ceramics Using a Combination of Graft Polymerization and Sol–Gel Approaches
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Bibliographic record
Abstract
A novel process was successfully developed to manufacture mullite-bonded porous SiC ceramics. In this technique, SiC particles were coated with a sintering additive (alumina) and pore former (high density polyethylene) in a two-step process composed of sol–gel and in situ polymerization techniques, respectively. After the formation of a green body, the porous samples were produced by pressureless sintering under air. The microstructures, phase components, and physical and mechanical properties of the developed porous ceramics were examined and compared with materials obtained by the traditional process. The results interpretation revealed that the flexural strength (35%) and porosity (8%), as well as the pore size of the samples fabricated by the novel process significantly increased as compared to regular ceramic parts. Further characterization indicated that the enhanced properties of the porous ceramics came from the good dispersion of the sintering additive and pore former into the SiC particles and from the higher mullite formation.
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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 | 0.001 | 0.001 |
| 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) | 0.000 | 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 it