Abstract
Complete structural analysis of a Mo bicrystal containing a Sigma =3, [101](1 (2) over bar1)(A) grain boundary (GB) was achieved by means of transmission electron microscopy from the microscopic to the nanoscopic level. Secondary GB dislocations compensating a small deviation from the exact Sigma =3 concidence were observed and their character was determined. Rigid-body displacements (RBDs) were determined directly from high-resolution electron microscopy images using samples with surface normal parallel and perpendicular to the tilt axis. Measured values of RBDs are compared with recent theoretical calculations.
| Original language | English |
|---|---|
| Pages (from-to) | 417-429 |
| Number of pages | 13 |
| Journal | Philosophical Magazine A-Physics of Condensed Matter Structure Defects and Mechanical Properties |
| Volume | 81 |
| Issue number | 2 |
| Publication status | Published - Feb-2001 |
Keywords
- TRANSITION-METALS
- ATOMIC-STRUCTURE
- DISLOCATIONS
- SIMULATION
- SCIENCE
- FORCES
- HREM