Study of the Relationship Between the Young's Modulus and Microstructure of Vacuum Plasma Sprayed Boron Carbide
Bibliographic record
Abstract
The influence of the structure of Vacuum Plasma Sprayed (VPS) boron carbide on the elastic modulus of the deposit was studied. Thermal sprayed structures consist of individual splats along with unmelted and partially melted particles, pores, microcracks, and splat boundaries. Thermal sprayed deposits exhibit anisotropic properties parallel and perpendicular to the splat plane. In the present study, micro-indentation hardness tests were performed on the vacuum plasma sprayed B4C to determine the elastic modulus parallel and perpendicular to the coating surface. Nano-indentation hardness tests were also performed on the cross-sectional microstructure to measure the elastic modulus parallel to the coating surface to compare with the values obtained from micro-indentation tests. A developed object oriented finite-element method also was performed to estimate the elastic modulus. The elastic modulus of the as-sprayed structure decreased significantly compared to the conventionally processed B4C materials. Due to an anisotropic microstructure, the perpendicular elastic modulus was lower than that parallel to the spray plane. Numerical simulations using finite element method confirmed anisotropic elastic behavior of the structure and highlighted the effect of splat boundaries on the elastic modulus in the as-sprayed structure.
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 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".