Journal article
The structure of solid salt eutectics - Why lamellar or conglomerate?
University of Southampton1
Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark2
Department of Mechanical Engineering, Technical University of Denmark3
Energy and Materials, Department of Chemistry, Technical University of Denmark4
Department of Chemistry, Technical University of Denmark5
Using KCl/ZnSO4 eutectic it has been shown that cooling the melt into a room temperature enclosure forms a lamellar structure, whereas cooling into a heated enclosure (225 °C) forms a conglomerate structure, while an enclosure temperature of 125 °C gave a partially conglomerate structure with some lamellae in process of forming conglomerates.
Consideration of the thermal gradients imposed on solidification and consequently the relative time available during which the ions are sufficiently mobile to rearrange their positions, can explain the observation that lamellar structures are formed by higher melting point eutectics, whereas eutectics of lower melting point form conglomerate structure.
| Language: | English |
|---|---|
| Year: | 2009 |
| Pages: | 1453-1456 |
| ISSN: | 18727689 and 01672738 |
| Types: | Journal article |
| DOI: | 10.1016/j.ssi.2009.09.004 |
| ORCIDs: | Horsewell, Andy and Berg, Rolf W. |
