A New System of Low Temperature Sintering ZnO–SiO<sub>2</sub> Dielectric Ceramics
Bibliographic record
Abstract
A new ZnO–SiO 2 microwave dielectric ceramic system with Li 2 CO 3 and Bi 2 O 3 composite additives was studied. It was difficult to acquire dense ceramics at 1380 °C without sintering aids using the ZnO–SiO 2 system. With 5 wt % Li 2 CO 3 and 4 wt % Bi 2 O 3 composite addition, the ZnO–SiO 2 system can be sintered well at approximately 900 °C. The dielectric constant of ZnO–SiO 2 system decreased with increasing SiO 2 content and Q × f value acquired a maximum at a certain SiO 2 content. The samples of ZnO–0.6SiO 2 with Li 2 CO 3 and Bi 2 O 3 addition sintered at 910 °C for 2 h showed excellent properties such as ε r =6.65, Q × f =33,000 GHz (at 11 GHz), and τ f =-70 ppm/°C.
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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 | 0.000 | 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) | 0.001 | 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 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".