A5021772484- nanoparticles nucleation surface interactions
- Microstructure and Mechanical Properties of Steels
- Metallurgical and Alloy Processes
- Metal Alloys Wear and Properties
- High Temperature Alloys and Creep
- Intermetallics and Advanced Alloy Properties
- Electronic Packaging and Soldering Technologies
- Metal and Thin Film Mechanics
- Metallurgical Processes and Thermodynamics
- Welding Techniques and Residual Stresses
- Advanced materials and composites
- Gold and Silver Nanoparticles Synthesis and Applications
- Material Properties and Applications
- Nanomaterials and Printing Technologies
- Aluminum Alloys Composites Properties
- Chalcogenide Semiconductor Thin Films
- Chemical and Physical Properties of Materials
- Thermodynamic and Structural Properties of Metals and Alloys
- Advanced Materials Characterization Techniques
- Thermal and Kinetic Analysis
- Education, Psychology, and Social Research
- Quantum Dots Synthesis And Properties
- Chemical Thermodynamics and Molecular Structure
- High-Temperature Coating Behaviors
- Advanced Chemical Physics Studies
Masaryk University
2012-2024
Central European Institute of Technology
2012-2019
Central European Institute of Technology – Masaryk University
2013-2018
Czech Academy of Sciences
1993
The Ag‐Cu bimetallic colloidal nanoparticles (NPs) were prepared by solvothermal synthesis from metalloorganic precursors in a mixture of organic solvents. characterized dynamic light scattering (DLS) and small angle X‐ray (SAXS). properties metallic core shell the studied direct inlet probe mass spectrometry (DIP/MS), Knudsen effusion (KEMS), double‐pulse laser‐induced breakdown spectroscopy (DPLIBS), differential scanning calorimetry (DSC). transmission electron microscopy (TEM) (SEM) used...
SnAg nanoparticles (SnAg NPs) were prepared by wet synthesis. The chemical composition of the NPs was obtained inductively coupled plasma - mass spectrometry. fine powder samples characterized electron microscopic technique (SEM) and thermal analysis (DSC). with different size obtained. dependent melting point depression (MPD) determined experimentally. phase diagram alloy also calculated using CALPHAD method, which has been extended to describe surface energy nanoparticles. same approach...
Solvothermal synthesis was used for Ag-Cu nanoparticle (NP) preparation from metallo-organic precursors. The detailed NP characterization performed to obtain information about microstructure and both phase chemical compositions. resulting nanoparticles exhibited composition inside a FCC_Ag + FCC_Cu two-phase region. study by various methods of electron microscopy including high-resolution transmission (HRTEM) at an atomic scale. HRTEM X-ray diffraction studies showed that the prepared form...
A structural study was performed on the austenitic steels Avesta 254 SMO and Avesta 654 after annealing at 700 C for 500, 3188 6170 h. Both steels initially show an unexpectedly large amount of Laves phase, followed by a relative slow development Sigma phase with equilibrium apparently not yet reached Thermodynamic calculations confirm that driving forces for alternative precipitates are very similar thus making it easy to form metastable precipitates only change slowly the equilibrium...
The effects of metallic nanoparticles as cytotoxicity or antibacterial activity are widely known. It is also obvious that ultrasound one the most used therapeutic modalities in medicine. effect application therapeutical ultrasonic field presence AgCu <100 nm modified by phenanthroline polyvinyl alcohol was examined on human ovarian carcinoma cells A2780. Metallic were characterized electron microscopy and measuring zeta potential. cell viability tested MTT test. experimental results...
Results of computer simulations long term service exposure for weldments the CSN 15 128/P91 and SK3STC/P91 steels are presented compared with corresponding results phase composition experiments. The welded material P91 (EU designation: X10CrMoVNb 9–1) represents progressive chromium steel alloyed molybdenum, vanadium, carbon, nitrogen. 128 (13CrMoV 2–5) is low alloy Cr–Mo–V steel. SK3STC (12CrMo 10–10) consumable electrode material. stability weldment microstructure investigated at elevated...
In the present paper, steels that are mostly used in technical practice as base materials, filler metals and consumable electrodes design of dissimilar weld joints studied. These differ mainly content Cr, Mo, V, W N. It is explained emphasised paper effect thermodynamics, diffusion phase transformations on stability exposed to temperatures over ∼500°C cannot be underrated during operation. For all materials under study carbon activity at 600°C given calculated by CALPHAD method, a...
Silver nanoparticles (Ag-NPs) were prepared by wet synthesis. The Ag-NPs suspension and the copper substrate plate used for a preparation of substrate-nanoparticle-substrate samples. sandwich like samples Cu/Ag/Cu investigated in-situ at isothermal external conditions (IEC) inside apparatus simultaneous thermal analysis STA409 (DSC). results electrical resistance recorded during sample heat treatment. Thermal effects sintering between substrates measured differential scanning calorimetry...