Theory of Peierls Force of a Boundary Layer
スポンサーリンク
概要
- 論文の詳細を見る
An exact solution to the Frenkel-Kontorova equation for a one-dimensionaldislocation under stress is obtained by numerical calculations, and is comparedwith some of approximate solutions which are calculated from a continuummodel, a successive approach, the usual Peierls barrier model and the two-parabola approximation to a sinusoidal potential. The exact solution shows thati) the Peierls force is not an oscil[atory but a monotonically decreasing functionof the thickness of the boundary layer, and ii) of the above approximations,the usual Peierls potential barrier model is best, while the two-parabola approxi-mation is worst. As examples of the Peierls force, an effective shear stress of thecoherent twin boundary and an intrinsic coercive force of 180' Bloch domainwall are discussed.
- 社団法人日本物理学会の論文
- 1979-10-15
著者
-
Sugiyama Akira
Physics Loboratory Department Of General Education Nagoya University
-
Sugiyama Akira
Physics Labolatory. College Of General Education Nagoya University
関連論文
- Stationary Propagation of Kink in Dislocation
- Electron Density in Interior Far from Metal Surfaces
- Theory of Electronic Specific Heats of Dilute Alloys
- Theory of Valency Effect of Impurity Atoms on Hardening of Alloys
- Theory of Peierls Force of a Boundary Layer
- Statistical Velocity of Dislocation by Kink Formation Mechanism
- Calculation of Stacking Fault Energy by Use of Long-Range Interionic Potential. : I. Application of Ewald Method
- Quasi-Stationary Propagation of Dislocation Kink