Národní úložiště šedé literatury Nalezeno 10 záznamů.  Hledání trvalo 0.01 vteřin. 
Properties of interfaces at nanometric scale
Lejček, Pavel ; Paidar, Václav
First let us focus on the TiAl ordered intermetallic alloys that represent due to very favourable strength-to-ratio, and thus light weight required by transport vehicles, an advanced material for the aerospace and automotive applications. The second example is closer to classical materials. The properties of polycrystals can be, at least in principle, improved by grain boundary engineering.
Grain boundary migration affected by triple junction
Paidar, Václav ; Kroc, J.
Migration of grain boundaries is modelled by a cellular automation. The effect of triple junction is investigated comparing the results for bi- and tricrystals.
Properties of interfaces and plastic deformation in TiAl
Paidar, Václav
Complex plastic deformation of Ti-Al intermetallic alloys composed of lamellar microstructures is interpreted considering not only three forces acting on the carriers of plastic deformation but also the structure of these carries in the crystal lattice.
Properties of interfaces and plastic deformation in TiAl
Paidar, Václav
Complex plastic deformation of TiAl intermetallic alloys composed of lamellar microstructure is interpreted considering not only the forces acting on the carriers of plastic deformation but also the structure of these carriers in the crystal lattice.
Interfaces in TiAl
Paidar, Václav
Two tipes of interfaces can be distinguished in gama-phaseod TiAl ordered alloys: Special rotational interfaces on the {111} planes for which the misorientation angle with respect to the axis perpendicular to the interface plane is a multiple of 60grade. And common grain boundaries with arbitrary orientations of the boundary plane and rotation axis.
Modelling of grain boundary migration in bicrystals
Kroc, J. ; Paidar, Václav
A simple cellural automata model of the single grain boundary migration in bicrystals has been developed. It is based on the principle of minimization of the total grain boundary energy which is in our model proportional to the boundary area.

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