The orientation relationship and interfaces of Au5Sn with the Au (001), (110) and (111) surfaces have been studied with transmission electron microscopy. Au was evaporated onto the NaCl (001), (110) and (111) surfaces to form epitaxial Au thin films and Sn was evaporated onto the Au film and heat treated to form Au5Sn. Two types of orientation relationships were found: (1) (2-1-10)Au5Sn/(001)Au¡A(0006)Au5Sn //(-220)Au and (03-30)Au5Sn//(220)Au, which was found on the (2-1-10)Au5Sn/(001)Au interface; and (2) (2-1-10)Au5Sn/(-111)Au¡A(0006)Au5Sn //(-22-4)Au and (03-30)Au5Sn//(220)Au, which was found on the (2-1-10)Au5Sn/(-111)Au interface.The structures of the interfaces were analyzed.
The free energy formation of AuSn is much larger than that of Au5Sn.Analysis of above results show that the differences of the interfacial energies between AuSn/Au and Au5Sn/Au may not be a significant.
Therefore probably has a lower activation energy of AuSn nucleation and in the first plane to form at the AuSn interface.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0701111-162228 |
| Date | 01 July 2011 |
| Creators | Jiang, Bo-Han |
| Contributors | Shen, Pou-Yan, Gan, Der-Shin, Chang, Liu-Wen |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0701111-162228 |
| Rights | restricted, Copyright information available at source archive |
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