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 |
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All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
Cite this
Evaluation of surface energy by molecular dynamics simulation and discussion about cleavage fracture in α-Al2O3. / Takematsu, Shin Ichi; Mizuguchi, Takashi; Nakashima, Hideharu; Ikeda, Ken Ichi; Abe, Hiroshi.
In: Journal of the Ceramic Society of Japan, Vol. 112, No. 1301, 01.2004, p. 46-49.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Evaluation of surface energy by molecular dynamics simulation and discussion about cleavage fracture in α-Al2O3
AU - Takematsu, Shin Ichi
AU - Mizuguchi, Takashi
AU - Nakashima, Hideharu
AU - Ikeda, Ken Ichi
AU - Abe, Hiroshi
PY - 2004/1
Y1 - 2004/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=1442263593&partnerID=8YFLogxK
U2 - 10.2109/jcersj.112.46
DO - 10.2109/jcersj.112.46
M3 - Article
AN - SCOPUS:1442263593
VL - 112
SP - 46
EP - 49
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 1301
ER -