Nonlinear Electrical Properties of TiO_2·Y_2O_3·Nb_2O_5 Capacitor-Varistor Ceramics
Bibliographic record
Abstract
The nonlinear electrical properties of TiO2.Y2O3.Nb2O5 ceramics were investigated as a new varistor material. An optimal doping composition of 99.75%TiO2.0.60%Y2O3.0.10%Nb2O5 was obtained with low breakdown electrical field of 8.8V/mm, high nonlinear constant of 7.0 and ultrahigh relative dielectric constant of 7.6×104, being consistent with the highest and narrowest grain boundary barriers of the ceramic. The frequency dependence of the capacitance and the resistivity shows that the samples doped with 0.10%mol Nb2O5 exhibit the highest capacitance and resistivity at low frequencies and comparatively low in comparison with other samples at high frequencies. In view of these electrical characteristics; the ceramic of 99.75%TiO2 .0.60%Y2O3 .0. 10%Nb2O5 is a viable candidate for capacitor-varistor functional devices. The characteristics of the ceramics can be explained by the effect and the maximum of the substitution of Ti4+ with Nb5+. In order to illustrate the grain boundary barriers formation in TiO2.Y2O3.Nb2O5 varistors, a grain-boundary defect barrier model was also introduced.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
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) | 0.001 | 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) | 0.002 | 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 teacher head, 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".