Abstract
Ion beam mixing of Cu/Mo multilayer samples and demixing of Cu-Mo alloy samples were examined as functions of temperature and ion mass. Even at liquid nitrogen temperature, the mixing of one component in other was very small under 1.0 MeV Kr irradiation. The maximum solubility was about 10%. Irradiation of homogeneous Cu-Mo alloys under the same conditions, moreover, led to phase separation. These conclusions were deduced from bulk X-ray diffraction measurements and corroborated by EXAFS examination. The maximum solubility obtained by irradiating multilayer samples occurred at about 600 K. At lower or higher temperature, the solubility of Cu in Mo-rich phase was lower. A model based on the ballistic mixing, thermal spike and radiation enhanced diffusion explains these results.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 585-590 |
| Number of pages | 6 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 540 |
| State | Published - 1999 |
| Event | Proceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA Duration: Nov 30 1998 → Dec 3 1998 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering