Processing and Properties of a Ni-ZrO2 P/M Composite
Why this work is in the frame
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Bibliographic record
Abstract
The powder metallurgy processing route is used for preparing Ni-matrix MMC by incorporating ultrafine Zr0 2 powder that is agglomerated into micron sized clusters. After blending with ball milling, the heated porous MMC is consolidated using the compression of a cam plastometer. Characterization of the MMC using SEM and EDAX reveals that most of the Zr0 2 clusters existing in the Zr0 2 feed powder can be nearly completely broken up by the ball milling process during blending. However, residual Zr0 2 clusters in a loose structure are preserved in the final sintered Ni-Zr0 2 material. After compression using a Cam plastometer, the clusters are not broken up but are flattened into discs but not densified or penetrated with Ni. A de-agglomeration process was attempted as an alternative blending process in order to achieve a better distribution of Zr0 2 . The results showed a modest improvement in the breakup of the clusters. Despite the presence of these clusters, it is shown that the dispersed Zr0 2 powders do increase activation energy for the flow stress of the MMC.
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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 | 0.000 | 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) | 0.000 | 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