Surface Modification in Polycrystalline Y2O3 Under High‐Pressure/High‐Temperature Processing Conditions
Abstract
A pressure‐induced phase transformation is used to refine the grain size of polycrystalline Y2O3, 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 22, 2013
- Source ID
- 10.1111/jace.12245
Entities
People
- Bernard H. Kear
- Christopher S. Nordahl
- Jafar F. Al‐sharab
- Stephen D. Tse
- Stuart Deutsch
Organizations
- New York University
- New York University Tandon School of Engineering
- Office of Naval Research
- Rutgers University