Using the Box-Behnken experimental design to improve the biocompatibility of the powder Ti–TiB2 composite through laser surface treatment
Why this work is in the frame
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Bibliographic record
Abstract
: The paper deals with the surface functionalization of a biocompatible powder-based composite Ti-TiB 2 prepared by spark plasma sintering, applying the fiber nanosecond laser working at 1064 nm wavelength in an ambient atmosphere. The influence of the laser pulse energy (E P ), laser beam spot overlap (O L), and laser beam trace overlap (O T ) on the integrity of the laser-treated surfaces was studied using the Box-Behnken experimental design (BBD) in order to maximize the surface osseointegration-relevant properties. The SEM analysis, surface roughness measurement, energy-dispersive X-ray spectroscopy, static contact angle measurement, and X-ray diffraction analysis were conducted to identify the surface topography, morphology, chemistry, and wettability. Finally, the multiple analysis of variance (ANOVA) and RSM methodology were performed to optimize the laser treatment parameters. Applying the second-order polynomial model, the optimal combination of process parameters was set as follows: E P = 0.3 mJ, O L = -12%, and O T = 40%. The confirmation test showed very high prediction accuracy of the surface roughness and chemistry but low prediction accuracy of the surface wettability.
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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 | 0.000 |
| 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) | 0.000 | 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