Abstract
The tetragonal ZrO 2 is observed in the oxidation surface of Zr 55Cu 30Al 10Ni 5 bulk metallic glass (BMG) while both the tetragonal ZrO 2 (t-ZrO 2) and monoclinic ZrO 2 (m-ZrO 2) are determined on the oxidation surface of crystalline counterparts with same chemical composition. In vacuum, the phase transformation of t-ZrO 2 into m-ZrO 2 in the oxide scale is investigated on the BMG substrate and crystalline substrate, both annealed at different temperatures, respectively. The crystallization of BMG substrate is related to the formation of m-ZrO 2. The difference of the diffusion mechanism in the oxidation of bulk metallic glass and its crystalline alloy is characterized by 18O 2 isotopic tracer. In the oxidation, the promotion of m-ZrO 2 on the crystalline substrate is attributed to the inward diffusion of oxygen.
| Original language | English |
|---|---|
| Pages (from-to) | 21-25 |
| Number of pages | 5 |
| Journal | Intermetallics |
| Volume | 31 |
| DOIs | |
| State | Published - Dec 2012 |
Keywords
- B. Diffusion
- B. Glasses, metallic
- B. Oxidation
- F. Secondary ion mass spectrometry
Fingerprint
Dive into the research topics of 'The relationship between t-ZrO 2 stability and the crystallization of a Zr-based bulk metallic glass during oxidation'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver