EFFECTS OF THE SUBSTRATE ROTATION SPEED ON THE STRUCTURE AND UNIFORMITY OF YSZ COATINGS FABRICATED BY ELECTRON-BEAM SYNTHESIS IN THE FOREVACUUM PRESSURE RANGE
We present the experimental results on electron-beam deposition of Y<sub>2</sub>O<sub>3</sub>-stabilized zirconium dioxide ceramic coatings using a forevacuum plasma-cathode electron source. The coating thickness was found to decrease from 44 &#177; 12 &mu;m to 16 &#177; 1 &mu;m with increasing substrate rotation speed from 0 to 20 revolutions per minute, while the relative error of non-uniformity decreased from &epsilon; &#61; 28&#37; to &epsilon; &#61; 6&#37;. The coating structure exhibited inter-crystalline pores owing to the "shadow effect." Data on the coating porosity were obtained using scanning electron microscopy, and it was shown that the porosity increased with increasing rotation speed.
Authors
- Denis B. Zolotukhin (ORCID: https://orcid.org/0000-0002-5206-9486)
- A.V. Tyunkov (ORCID: https://orcid.org/0000-0001-9742-9636)
- A. A. Andronov (ORCID: https://orcid.org/0009-0004-9120-8487)
- Alexey Zenin
- Yuri Yushkov
Institutions
- Tomsk State University of Control Systems and Radio-Electronics (RU)
- Institute of High Current Electronics (RU)
Publication Details
- Journal
- High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes
- Published
- 2024-09-17
- DOI
- https://doi.org/10.1615/hightempmatproc.2024054462
- Primary Topic
- High-Temperature Coating Behaviors
- Type
- article
- Field-Weighted Citation Impact
- 0.00