Interaction of liquid and solid gallium with thin silver films: Synchronized spreading and penetration
| Autor: | Evgeny E. Glickman, Mario Levenshtein, Noam Eliaz, Lior Budic |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Materials science
Polymers and Plastics Metals and Alloys Analytical chemistry chemistry.chemical_element Mineralogy Penetration (firestop) Microstructure Electronic Optical and Magnetic Materials chemistry Ceramics and Composites Grain boundary diffusion coefficient Grain boundary Wetting Crystallite Thin film Gallium |
| Zdroj: | Acta Materialia. 59:914-926 |
| ISSN: | 1359-6454 |
| DOI: | 10.1016/j.actamat.2010.10.004 |
| Popis: | The synchronized lateral spreading and through-penetration of liquid and solid gallium (Ga) in supported thin polycrystalline films of silver (Ag) were studied. The spreading and penetration kinetics were presumably controlled by a common mechanism. The spreading rate in the 0.5 μm thick film was found to be constant with time. The activation energies of the process responsible for spreading/penetration of liquid and solid Ga were EL ≈ 28.9 ± 4.8 kJ mol−1 and ES ≈ 48.2 ± 9.6 kJ mol−1, respectively. Grain boundary grooving, with Ag diffusion out of the groove either through liquid Ga or through solid Ga, was suggested as a possible mechanism of the spreading and penetration. The model proposed reproduced the observed spreading/penetration rates and gave reasonable estimates of the energies ES and EL. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect