| タイトル | The interaction of bubbles with solidification interfaces |
| 著者（英） | Papazian, J. M.; Wilcox, W. R. |
| 著者所属（英） | Clarkson Coll. of Technology|Grumman Aerospace Corp. |
| 発行日 | 1977-01-01 |
| 言語 | eng |
| 内容記述 | The behavior of bubbles at a dendritic solidification interface was studied during the coasting phase of a sounding rocket flight. Sequential photographs of the gradient freeze experiment showed nucleation, growth and coalescence of bubbles at the moving interface during both the low-gravity and one-gravity tests. In the one-gravity test the bubbles were observed to detach from the interface and float to the top of the melt. However, in the low-gravity tests no bubble detachment from the interface or steady state bubble motion occurred and large voids were grown into the crystal. These observations are discussed in terms of the current theory of thermal migration of bubbles and in terms of their implications on the space processing of metals. |
| NASA分類 | SOLID-STATE PHYSICS |
| レポートNO | 77A19889
AIAA PAPER 77-194 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/439435 |
