Katedra fyziky / Department of Physics

Kolekce


Recent Submissions

Farhadizadeh, Alireza , Vlček, Jaroslav , Houška, Jiří , Haviar, Stanislav , Čerstvý, Radomír , Červená, Michaela
Hard and electrically conductive multicomponent diboride-based films with high thermal stability

We report high-quality, hard (31–41 GPa), crack-resistant (hardness-to-effective Young's modulus ratio of 0.13–0.16) and electrically conductive (2.8–4.2 × 10^5 S/m) HfB2 based thin-film ceramic materials with high thermal stability. We go through a wide range of compositions resulting from i...

Houška, Jiří
Maximum achievable N content in atom-by-atom growth of amorphous Si–B–C–N materials

Amorphous Si–B–C–N alloys can combine exceptional oxidation resistance up to 1500 °C with high-temperature stability of superior functional properties. Because some of these characteristics require as high N content as possible, the maximum achievable N content in amorphous Si–B–C–N is examined&#...

Batková, Šárka , Kozák, Tomáš , Haviar, Stanislav , Mareš, Pavel , Čapek, Jiří
Effect of exit-orifice diameter on Cu nanoparticles produced by gas-aggregation source

Gas-aggregation source (GAS) was used to prepare Cu nanoparticles. By changing the diameter of the exit orifice of the aggregation chamber, we were able to isolate and investigate the effect of the flow rate of the working gas at a constant pressure inside the aggregation ...

Musil, Jindřich , Čiperová, Zuzana , Čerstvý, Radomír , Kos, Šimon
Hard alloy films with enhanced resistance to cracking

The article reports on the mechanical properties of alloy films prepared by magnetron sputtering. Cracking is a great drawback of alloy films because it strongly limits many of their practical applications. It is shown that hard alloy films resistant to cracking must be superelasti...

Matas, Martin , Procházka, Michal , Vlček, Jaroslav , Houška, Jiří
Dependence of characteristics of Hf(M)SiBCN (M = Y, Ho, Ta, Mo) thin films on the M choice: Ab-initio and experimental study

Self-formation of a unique dual glassy-crystalline structure in binary W–Zr system was observed for a film with 28 at.% Zr prepared by magnetron co-sputtering. The film is composed of conical columnar domains of α-W(Zr) solid solution structure surrounded by featureless areas corresponding&#...