標題: | Flux-driven cellular precipitation in open system to form porous Cu3Sn |
作者: | Gusak, Andriy M. Chen, Chih Tu, K. N. 材料科學與工程學系 Department of Materials Science and Engineering |
關鍵字: | Diffusion;voids;precipitation;open system;eutectoid transformation;flux-driven transformation |
公開日期: | 2016 |
摘要: | Recently, a new morphology of porous Cu3Sn with lamellar structure is observed. Several possible explanations of the formation are proposed and compared. The most reasonable one seems to be the one based on a theory of flux-driven cellular precipitation in open system. Outflux of Sn from Cu6Sn5 generates simultaneously supersaturation with vacancies and with copper leading to the eutectoid-like transformation + (where is void). The transformation is complete due to a complete outflux of Sn from the Cu6Sn5 phase. Simple formulae for prediction of the lamellar structure parameters and the propagation velocity are obtained and compared reasonably with experimental data. The suggested model can be interpreted as one more case of the flux-driven phase transformations in open systems. |
URI: | http://dx.doi.org/10.1080/14786435.2016.1162913 http://hdl.handle.net/11536/133851 |
ISSN: | 1478-6435 |
DOI: | 10.1080/14786435.2016.1162913 |
期刊: | PHILOSOPHICAL MAGAZINE |
Volume: | 96 |
Issue: | 13 |
起始頁: | 1318 |
結束頁: | 1331 |
顯示於類別: | 期刊論文 |