Abstract
Surface energies of α-Al2O3 were calculated using molecular dynamics (MD) method. It was found that the surface energy strongly depends on crystal orientation. The surface energy of (01̄10) plane had the maximum value of about 13 J·m-2, while that of the other crystallographic planes ranged between 2 and 4 J·m-2. The fracture toughness of single crystal α-Al2O3 had relatively good correlation with surface energies of (01̄10) and (01̄12) planes. It was concluded that surface energies highly contributed to the cleavage fracture of (01̄10) and (01̄12) planes.
| Original language | English |
|---|---|
| Pages (from-to) | 46-49 |
| Number of pages | 4 |
| Journal | Journal of the Ceramic Society of Japan |
| Volume | 112 |
| Issue number | 1301 |
| DOIs | |
| Publication status | Published - Jan 2004 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
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Takematsu, S. I., Mizuguchi, T., Nakashima, H., Ikeda, K. I., & Abe, H. (2004). Evaluation of surface energy by molecular dynamics simulation and discussion about cleavage fracture in α-Al2O3. Journal of the Ceramic Society of Japan, 112(1301), 46-49. https://doi.org/10.2109/jcersj.112.46