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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 22
Benešová, Martina
Analýza tepelných procesů při laserovém svařování plastů

This thesis studies thermal processes during laser welding of plastics. It summarizes theories about the problematics and current status of its modelling. Further, creation of the simulation model of laser welding of plastics through the COSMOSM software is described. From the model,&#...

Matas, Martin
Teoretický popis tuhých roztoků nitridů a boridů přechodových kovů

Nitrides and borides of transition metals (Y, Ho, Hf, Ta, and Mo) are investigated by density-functional theory calculations. Suitable calculation parameters and optimum methodology of processing the raw data are identified. A new approach to modelling of magnetic rare-earth metal compounds ...

Kubásek, Tomáš
Vysokovýkonová pulzní reaktivní magnetronová depozice termochromických vrstev VO2 a jejich charakterizace

This thesis deals with the thermochromic properties of vanadium dioxide (VO2) thin films prepared by the method of high-power impulse magnetron sputtering, or rather its modified form with deep oscillations (DOMS). Three films in total were created. Their phase composition, transmittance and...

Hutsalo, Kseniia
Tenkovrstvé povlaky na bázi kovových skel Zr-Hf-Cu

As part of the diploma thesis were prepared three series of Zr-Hf-Cu layers, applied by highly efficient HiPIMS pulse magnetron sputtering in the deposition chamber. The depositions were performed in an atmosphere of argon. The basic pressure before each depositing was less than 5x...

Šula, Michal , Kozák Tomáš, Ing. Ph.D.
Monte Carlo simulace napouštění reaktivního plynu pro reaktivní magnetronové naprašování vrstev

The presented diploma thesis, at the beginning, focuses on the theory reactive magnetron sputtering. It briefly discusses historical development, modern trends and possible issues with the application of the technology. In the next part, it describes a model using Monte Carlo methods fo...

Tichý, Michal , Vlček Jaroslav, Prof. RNDr. CSc.
Vysokovýkonová pulzní reaktivní magnetronová depozice vrstev VO2 na skle

This thesis deals with reactive High-Power Impulse Magnetron Sputtering (HiPIMS) of vanadium dioxide thin films on glass substrates. The aim is to create VO2 thermochromic thin films through controlled HiPIMS deposition and investigate the influence of deposition parameters on discharge character...

Kotrlová, Michaela , Zeman Petr, Doc. Ing. Ph.D.
Magnetronově naprašovaná tenkovrstvá kovová skla a jejich charakterizace

This thesis focuses on the preparation of Zr-Cu thin film metallic glasses deposited by HiPIMS and DC magnetron sputtering in pure argon. The influence of the coposition of the Zr-Cu thin films (0-100 at. % Cu), the value of substrate bias (Us=Ufl, -30 V, -50 V, -70&...

Fialová, Markéta , Haviar Stanislav, RNDr. Ph.D.
Příprava a charakterizace nanostrukturních oxidů kovů

Thin films of tungsten oxide with various stoichiometries were prepared by reactive magnetron sputtering using a metal target. These films can be used as gas sensors. To improve the sensorial response to hydrogen palladium was used as a catalyst. The films were characterized by...

Čiperová, Zuzana , Musil Jindřich, Prof. Ing. DrSc.
Reaktivní magnetronové naprašování Zn-Sn-O vrstev a charakterizace jejich vlastností

Subject of the thesis was pulse reactive magnetron sputtering of Zn-Sn-O thin films. Three series were prepared. The common parameters of deposition were: distance between targets and substrates dT-S = 60 mm, pulse repetition frequency fr = 20 kHz, discharge current ID = 1,2 A...

Batková, Šárka , Čapek Jiří, Ing. Ph.D.
Kombinovaná depozice vrstev Ta-O-N a kovových klastrů Cu

This thesis deals with combined deposition of Ta-O-N coatings and nanoclusters of copper. The coatings were deposited using reactive high power impulse magnetron sputtering at an average target power density in a pulse of 1000 W/cm2. A ceramic tube placed 7 mm from the ta...

Vytisk, Tomáš
Reaktivní vysokovýkonová pulzní magnetronová depozice vrstev oxidů vanadu

The aim of this thesis is to fabricate thermochromic thin film of vanadium oxide. High power impulse magnetron sputtering is used to prepare a thermochromic film with structure changes below transition temperature Tc = 68 °C providing variable transmittance in infrared spectrum. The...

Javdošňák, Daniel
Reaktivní magnetronová depozice Al-Si-N a charakterizace jejich vlastností

This diploma thesis deals with the mechanical properties of nanocomposite thin films Al-Si-N (Al:Si = 90:10 hm. %) deposited by unbalanced magnetron sputtering, their resistance to cracking in bending test and indentation test with high load until 1 N. This work is mainly focused&#...

Procházka, Michal
Multikomponentní povlaky připravené pulzním reaktivním mangetronovým naprašováním

HfB2-based thin layers are well known for its high hardness, low electrical resistivity and oxidation resistance. Due to these properties the films are useful in many industrial applications. This study is focused on oxidation resistance of Hf-Si-B-C-N thin films and its change caused&#...

Krejčová, Milada
Počítačové modelování napouštění reaktivního plynu pro vysokovýkonové pulzní magnetronové naprašování oxidů kovů

The presented diploma thesis is at the beginning focused on application of plasma technologies. Next, it explains basics of the pressure measurement and the magnetron sputtering, including the reactive deposition and its application. In the Methodology chapter development of the test task&#x...

Zítek, Michal
Vliv přidání Cu na mechanické a antibakteriální vlastnosti naprašovaných vrstev

The subject of this diploma thesis is the deposition of ZrCuN thin films, which were reactively sputtered in Ar + N2 mixture using unbalanced dual magnetron equipped with stacked targets composed of Zr disc attached by Cu ring with an inner diameter of in = 34 mm.&#x...

Jaroš, Martin
Reaktivní magnetronová depozice vrstev Ti-Ni-N a vyšetření jejich vlastností

The subject of this paper was deposition thin Ti-Ni-N films, which were prepared by reactive magnetron sputtering with dual magnetron system. The influence of repetition frequency on the properties of deposited Ti-Ni-N films was investigated in series 1. The influence of substrate bias&...

Šímová, Veronika
Vliv energie částic na vlastnosti vrstev Me-B-C-(N) připravených reaktivní magnetronovou depozicí

This diploma thesis deals with thin films based on nitrides and borides of transition metals. The main attention was devoted to find the reason of high compressive stress in Hf-B-C-(N) materials compared to materials based on Zr and Ti prepared under the same discharge conditi...

Vonásek, Martin
Reaktivní naprašování vrstev s nízkým Youngovým modulem a charakterizace jejich vlastností

This thesis is dedicated to the reactive magnetron sputtering Zr-Si-O coatings using ac pulse dual magnetron. Zr-Si-O coatings with various elemental composition ratios were deposited on silicon, glass and molybdenum substrates. The partial pressure of reactive gas oxygen pO2 on deposition&...

Kolenatý, David
Reaktivní vysokovýkonová pulzní magnetronová depozice vrstev HfO2

This thesis is aimed at reactive high-power impulsed magnetron deposition of densified stoichiometric HfO2 thin films with pulse control of reactive gas flow. Thin films were prepared in oxygen and argon atmosphere, at pressure of working gas 2 Pa. A hafnium target of 100 mm&#...

Jandová, Jitka
Pulzní magnetronová depozice vrstev Hf-Si-B-C-N

This thesis is focused on multicomponent Hf-Si-B-C and Hf-Si-B-C-N thin films preparation by pulsed magnetron sputtering. The elemental composition, structure, mechanical, electrical properties and oxidation resistance of deposited films were subsequently evaluated. The main aim was to find the correl...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 22