Bibliographic record
Abstract
In this work, the isothermal section of the Al-Ca-Zn system has been investigated at 350°C using 5 diffusion couples and 26 key alloys. The actual compositions of the alloys are measured by inductively coupled plasma technique. Phase relations and solubility limits of the binary and ternary compounds have been determined by means of electron probe microanalysis and X-ray diffraction. In the current work, five ternary compounds have been found, three of which are reported for the first time: ternary intermetallic IM1 with the formula AlxCa8.5Zny (26≤x≤29, 62≤y≤65 at 350ºC), ternary intermetallic IM3 with the formula Al3-xCaZx (2≤x≤2.2 at 350oC) and ternary intermetallic IM5 with the formula Al2Ca9Zn3. The crystal structure information of IM1 has been studied by X-ray diffraction technique. XRD data has shown that IM1 is a solid solution that crystallizes in a cubic structure with Pm3 ̅m (221) space group having BaHg11 prototype. The homogeneity ranges of IM2 and IM4 have been determined at 350oC. Binary compounds Al14Ca13, Al2Ca, Al4Ca, CaZn2, CaZn3, CaZn5, CaZn11 and CaZn13 have extended solid solubility into the ternary system. For Al14Ca13, Al2Ca and Al4Ca, Al-atom is substituted by Zn. For CaZn2, CaZn3, CaZn5, CaZn11 and CaZn13 Zn is substituted by Al.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".