Back to Search
Start Over
Finite size effects in the crystallization of a bulk metallic glass
- Source :
- Applied Physics Letters. 103:111912
- Publication Year :
- 2013
- Publisher :
- AIP Publishing, 2013.
-
Abstract
- We explore finite size effects in the crystallization of a bulk metallic glass with nm-scale dimensions. Nanorods of Pt57.5Cu14.7Ni5.3P22.5 are produced by thermoplastic extrusion of supercooled liquid through a nanoporous template. The nanorods exhibit remarkable differences in their crystallization behavior above the glass transition. Crystallization for 100 and 200 nm diameter nanorods occurred at 6 and 24 °C lower, respectively, than the nominal crystallization temperature for bulk material while the glass transition temperatures were unchanged from the bulk value. Size dependent crystallization kinetics is discussed within a framework of classical nucleation theory, as well as possible shear and surface-induced effects.
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 103
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........d022842cef33880ae45293637f928ce5