期刊
APPLIED PHYSICS LETTERS
卷 94, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3130209
关键词
annealing; copper alloys; germanium; glass structure; interface structure; metallic glasses; molecular dynamics method; nanoparticles; particle size; zirconium alloys
资金
- Deutsche Forschungsgemeinschaft (DFG) [Al-578-6]
- Karlsruhe Institute of Technology (KIT)
- HHLR Frankfurt and Darmstadt
- CSC Julich.
Molecular dynamics simulations are presented that provide evidence for the existence of diluted interfaces in nanoglasses, which is a class of material that can be synthesized by consolidating glassy nanoparticles. By comparing simulations of a covalently bonded Ge nanoglass and a metallic CuZr nanoglass, we show that the delocalization of the excess free volume initially located within the interfaces depends on the flow strain of the material. Our results suggest that the density distribution within a nanoglass can be controlled by the initial particle size and the annealing conditions. Therefore, nanoglasses represent an alternative route for controlling the properties of glassy materials.
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