Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1485812 | Journal of Non-Crystalline Solids | 2006 | 6 Pages |
Abstract
This paper demonstrates the embrittlement of a Zr-based bulk metallic glass caused by the presence of very low oxygen traces during its synthesis. Toughness studies are conducted both at room and low (77 K) temperatures. Samples with 2000 appm of oxygen contain crystalline defects (trapping all oxygen) while those with 300 appm are completely glassy. Toughness results clearly indicate that these defects embrittle the glass. Therefore, careful attention must be paid during synthesis with respect to the oxygen content to get a completely glassy alloy. This issue is of paramount importance when dealing with mechanical properties such as toughness.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
V. Keryvin, C. Bernard, J.-C. Sanglebœuf, Y. Yokoyama, T. Rouxel,