| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9803354 | Journal of Alloys and Compounds | 2005 | 5 Pages |
Abstract
A nanoindentation technique for determining hardness and Young's moduli is applied to electron beam-physical vapor deposition (EB-PVD) ZrO2-4Â mol%Y2O3 coatings. The porosity of the coatings increased with increasing substrate rotation speed during deposition. The hardness and Young's modulus showed a significant dependence on the substrate rotation speed and measurements made on columnar structures were strongly anisotropic. The hardness and Young's modulus of the surface regions of the coatings is found to be higher than that of the side regions. The hardness and Young's moduli of the surface regions of the coatings have a nearly constant value of approximately 10Â GPa and 230-250Â GPa, respectively, whereas those of the side areas decreased with increasing substrate rotation speed.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Byung-Koog Jang, Hideaki Matsubara,