Abstract
Single crystals of α-alumina with {0001}, {11̄20} and {01̄12} orientations were embedded in a matrix of liquid phase sintered alumina to study α-alumina single crystal growth in the presence of a calcium aluminosilicate liquid. Growth on the {11̄20} and {01̄12} surfaces was observed to occur by a diffusion-controlled mechanism while growth on the basal surface was controlled by two-dimensional nucleation. Growth models, which incorporate the change in matrix grain size, were derived and shown to fit the growth kinetics.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 257-267 |
| Number of pages | 11 |
| Journal | Interface Science |
| Volume | 8 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2000 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- General Materials Science
- Condensed Matter Physics