Fabrication and Characterization of ZrB <sub>2</sub> ‐Based Ceramic Using Synthesized ZrB <sub>2</sub> –LaB <sub>6</sub> Powder
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Bibliographic record
Abstract
ZrB 2 –LaB 6 powder was obtained by reactive synthesis using ZrO 2 , La 2 O 3 , B 4 C, and carbon powders. Then ZrB 2 –20 vol% SiC–10 vol% LaB 6 (ZSL) ceramics were prepared from commercially available SiC and the synthesized ZrB 2 –LaB 6 powder via hot pressing at 2000°C. The phase composition, microstructure, and mechanical properties were characterized. Results showed that both LaB 6 and SiC were uniformly distributed in the ZrB 2 matrix. The hardness and bending strength of ZSL were 17.06±0.52 GPa and 505.8±17.9 MPa, respectively. Fracture toughness was 5.7±0.39 MPa·m 1/2 , which is significantly higher than that reported for ZrB 2 –20 vol% SiC ceramics, due to enhanced crack deflection and crack bridging near SiC particles.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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