Katedra fyziky / Department of Physics

Kolekce


Recent Submissions

Shen, Yi , Jiang, Jiechao , Zeman, Petr , Šímová, Veronika , Vlček, Jaroslav , Meletis, Efstathios I.
Microstructure evolution in amorphous Hf–B–Si–C–N high temperature resistant coatings after annealing to 1500 °C in air

Recently, amorphous Hf–B–Si–C–N coatings found to demonstrate superior high-temperature oxidation resistance. The microstructure evolution of two coatings, Hf7B23Si22C6N40 and Hf6B21Si19C4N47, annealed to 1500 °C in air is investigated to understand their high oxidation resistance. The annealed coatings develop...

Mareš, Pavel , Vlček, Jaroslav , Houška, Jiří , Kohout, Jiří , Čapek, Jiří
Effect of energetic particles on pulsed magnetron sputtering of hard nanocrystalline MBCN (M = Ti, Zr, Hf) films with high electrical conductivity

Nanocrystalline MBCN (M = Ti, Zr, Hf) films were deposited onto Si substrates using pulsed magnetron co-sputtering of a single B4C-M target. The substrate temperature was adjusted to 450 °C during the depositions on the substrates at a floating potential. The total pressure of ...

Musil, Jindřich , Čiperová, Zuzana , Čerstvý, Radomír , Haviar, Stanislav
Flexible hard (Zr, Si) alloy films prepared by magnetron sputtering

The article reports on the investigation of mechanical properties of Si-rich (Zr, Si) alloy films deposited by magnetron sputtering. The main aim of this investigation is to develop flexible hard (Zr, Si) alloy films with enhanced resistance to cracking. The (Zr, Si) films were...

Houška, Jiří
Maximum N content in a-CNx by ab-initio simulations

Structures of amorphous CNx materials are predicted by extensive ab-initio molecular-dynamics simulations (more than 800 trajectories) in a wide range of compositions and densities. The main attention is paid to the formation of N2 molecules, with the aim to predict and explain the ...

Musil, Jindřich , Jaroš, Martin , Kos, Šimon
Superhard metallic coatings

The letter reports on the surface hardening of bulk soft metal materials by protective coatings made of the same metal as bulk but with up to 6 times higher hardness than that of the bulk material. This surface hardening is demonstrated by covering of the Ti substrat...