Nanomaterials are currently the subject of intense research due to their wide variety of potential applications in the biomedical, optical and electronic fields. We prepared and tested cobalt zinc ferrite nanoparticles (Co0.5Zn0.5Fe2O4+γ [CZF-NPs]) encapsulated by amorphous silica in order to fin...

Laser marking is an advanced technique used for modification of surface optical properties. This paper presents research on the influence of laser marking on the corrosion properties of stainless steel. Processes during the laser beam–surface interaction cause structure and color changes and...

This study demonstrates that a laser-induced crystallization instrumented with Raman spectroscopy is, in general, an effective tool to study the thermally activated crystallization kinetics. It is shown, for the solid phase crystallization of an amorphous silicon thin film, that the integral ...

Industrial lasers are an expanding technology of welding and other material processing. Lasers are often used with optical scanning heads which provide more versatility, accuracy and speed. The output part of the scanning head is covered by a protective glass which might get contam...

The electronic structure and optical properties of the molybdenum oxyfluoride K6[Mo4O8F10] single crystal were investigated. Based on X-ray diffraction data, the crystal structure was optimised so as to minimise the forces acting on each atom.

The transport properties of GaNxAs1_x (x ¼ 0.0, 0.25, 0.5, 0.75 and 1.0) alloys are investigated using the semi-classical Boltzmann theory as implemented in the BoltzTraP code. The electronic structures are calculated using the full potential linearized augmented plane wave method within...

Thin films of BaTiO3 and Co, Nb co-doped BaTiO3 on glass and Si (100) substrates were deposited by RF sputtering (at 350 ºC), and annealed. The amorphous and crystalline phases were observed for the as-deposited and annealed samples, respectively from the X-ray diffraction (XRD)&#x...

The influence of high temperature exposure on the mechanical and wear properties of selected HVOF sprayed CrC and No/Co – based alloy coatings were tested. Comparison of as-sprayed and 600°C/116 h annealed coatings’ microhardness, cohesive strength, abrasive and adhesive wear resistance...

This study deals with preparing geopolymer composite materials based on potassium silicate solution with the addition of different grain size composition of the filler.The influence of granulometry of added filler was studied in relation to viscosity, mechanical properties and microstructure of&#...

In this paper, are described measurement and data evaluation of environment samples collected after Chernobyl's accident. This samples was measured with technique of gamma spectrometry in cooperation with Department of Nuclear Reactors on FJFI ČVUT. Important part of this work is&...

This paper deals with relatively new method for preparation of micro and nanomaterial powders. This method is based on replacement of conventional solvents for hydrothermal and solvotermal synthesis of nanomaterials with molten mixture of alkaline hydroxides. This method is efficient ...