| Autor: |
Al ‐ Sharab, Jafar F., Deutsch, Stuart, Nordahl, Christopher S., Tse, StephEN D., Kear, Bernard H., Reimanis, I. |
| Předmět: |
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| Zdroj: |
Journal of the American Ceramic Society; Jun2013, Vol. 96 Issue 6, p1966-1971, 6p, 1 Color Photograph, 1 Black and White Photograph, 1 Diagram, 1 Chart, 3 Graphs |
| Abstrakt: |
A pressure-induced phase transformation is used to refine the grain size of polycrystalline Y2 O3, by a factor of 3000. A surface modification effect accompanies the observed grain refinement, which becomes more apparent with increasing holding time under high pressure. The surface-modified layer exhibits lower hardness and lower oxygen content relative to the underlying material. Moreover, it possesses columnar-grained structure with cubic symmetry, whereas the interior has a monoclinic structure. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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