| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498586 | Scripta Materialia | 2014 | 4 Pages |
Abstract
The enhancement of thermal stability in nanocrystalline-amorphous (NC–a) materials was investigated by a modified Monte Carlo Potts method. The thermal stability, including the grain size stability and amorphous distribution stability, was found to be controlled by the amorphous fraction f and the energy ratio (Jgb/Jint) of the NC–NC grain boundary energy to the NC–a interfacial energy. The best thermal stability for temperatures up to 1550 K was observed with f = 0.279 and Jgb/Jint = 12, where finer grains are surrounded by thin and coherent NC–a boundaries.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jing Guo, Zongjian Liu, Sanwu Wang, Yaogen Shen,