Národní úložiště šedé literatury Nalezeno 17 záznamů.  předchozí11 - 17  přejít na záznam: 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.
Interface classification for grain boundary engineering of polycrystals
Lejček, Pavel
Grain boundary engineering is a prospective, recently proposed technology for processing of polycrystalline materials with optimum properties via controlled arragment of individual (types of) grain boundaries.
Linear relationship between entropy and enthalpy of solid state processes
Lejček, Pavel
Thermodynamic analysis of the data on solute segregation grain boundaries in alfa-iron show that this dependence defins a characteristics temperature tau and an entropy-like parameter sigma.
Effect of ordering on grain boundary segregation
Lejček, Pavel ; Schneeweiss, Oldřich
A simple phenomenological model of solute segregation at partially ordered grain boundaries is proposed and used to correlate complex concentration and temperature dependences of silicon segregation in ordered Fe-Si alloys.
Grain boundary segregation in ordered alloys
Lejček, Pavel
Grain boundary segregation of solutes in systems with different level of the order is referred.Obtained temperature dependences of chemical composition of grain boundaries in Fe-Si, Fe-Al and NiAl systems are discussed from the point of view of present understanding of segregation in ordered systems.

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