37 research outputs found
Development and Physico-chemical Study of the Aqueous Dispersion Silver Nanoparticles as the Basis for Creating New Nanomaterials
The aqueous dispersion of silver nanoparticles have been obtained and studied by physicochemical
methods. Maximum of size nanoparticles distribution in the aqueous dispersion determined by the small
angle X-ray scattering technique was 2.5 nm. The composition on the basis of those nanoparticles can be
used to create new nanomaterials, in particular for the modification of talc silver nanoparticles. The
existence of nanoparticles at the talΡ surface is corroborated by the data of energy dispersive spectra and
by X-ray diffraction spectra
Degradation of Structure of Magnetron Ni and Cr Nanofilms at their Heating on Air
The present results of comprehensive researches of degradation processes for magnetron metal nanofilms of Ni and Cr when heated on air (373-1273 K) conducted by nanotechnology instruments. Temperatures of structural and phase transformations, interrelation of amplitude and phase-frequency components of ellipsometry measurements with "ferromagnetic-antiferromagnetic" for NiO phase
transition are establishe
Structure of Carbon Nanotubes in Colloidal Solutions under the Influence of a Constant Electric Field
Processes of self-organization in diffusive and limited conditions of colloidal solutions of carbon nanotubes under the influence of constant electric fields are studied. It is established that functionalized MCNT β COOH in a drop of colloidal solution is oriented in an electric field in a controllable way, which is of great practical value
Structure of Carbon Nanotubes in Colloidal Solutions under the Influence of a Constant Electric Field
Processes of self-organization in diffusive and limited conditions of colloidal solutions of carbon nanotubes under the influence of constant electric fields are studied. It is established that functionalized MCNT β COOH in a drop of colloidal solution is oriented in an electric field in a controllable way, which is of great practical value
Nanostructure Changes of Magnetron Copper Films with a Glass Ceramic Substrate
The present paper deals with the results of comprehensive research of heated in the air magnetron
copper films by atomic-force and scanning electron microscopy, Raman scattering, IR-Fourier and X-Ray
phase analysis, and spectral ellipsometry. According to the results of nano techniques, the relationship
between amplitude and phase-frequency components of ellipsometric measurements and phase structure
transformations has been established. The structural transition in the vicinity of 573 K, has been found
Self-assembly and Self-organization Processes of Carbon Nanotubes in the Colloidal Systems
The features and patterns of self-organization processes in the diffusion-limited conditions (method of
drops) of carbon-containing compounds and carbon nanotubes have been studied. The results of the research
influence of the substrate temperature and solvent on the formation of nanoscale fractal structures
in sediments of colloidal solutions are provided
Self-assembly and Self-organization Processes of Carbon Nanotubes in the Colloidal Systems
The features and patterns of self-organization processes in the diffusion-limited conditions (method of
drops) of carbon-containing compounds and carbon nanotubes have been studied. The results of the research
influence of the substrate temperature and solvent on the formation of nanoscale fractal structures
in sediments of colloidal solutions are provided
Development and Physico-chemical Study of the Aqueous Dispersion Silver Nanoparticles as the Basis for Creating New Nanomaterials
The aqueous dispersion of silver nanoparticles have been obtained and studied by physicochemical
methods. Maximum of size nanoparticles distribution in the aqueous dispersion determined by the small
angle X-ray scattering technique was 2.5 nm. The composition on the basis of those nanoparticles can be
used to create new nanomaterials, in particular for the modification of talc silver nanoparticles. The
existence of nanoparticles at the talΡ surface is corroborated by the data of energy dispersive spectra and
by X-ray diffraction spectra
Dimensional Effects in Micro- and Nanostructural Changes in Grain and Intragrained Structure of Steel 45 at Static-pulse Treatment
Conducted macro-, micro- and nanostructured materials were investigated by the influence of sample
sizes of steel 45 in the form of a parallelepiped, after intense static pulse processing in plastic deformation
as in the single (150 J), and pulsed (25 J) impact with a frequency of 23 Hz. When all modes of processing
bulk samples found structuring self-organized formation of dislocations. With a single exposure revealed as
filling pearlite grains periodic dislocations (200 nm), and the formation of dislocation-free regions. When a
periodic pulse treatment of the samples with transverse dimensions fold speed of propagation of elastic
waves and shock waves as well as the related transport velocity of dislocations turns shockwave
mechanism causing the formation of alternating strips of ferritic and pearlite walls (25 microns), wherein
the pearlite wall completely or partially filled with dislocations
Nanostructure Changes of Magnetron Copper Films with a Glass Ceramic Substrate
The present paper deals with the results of comprehensive research of heated in the air magnetron
copper films by atomic-force and scanning electron microscopy, Raman scattering, IR-Fourier and X-Ray
phase analysis, and spectral ellipsometry. According to the results of nano techniques, the relationship
between amplitude and phase-frequency components of ellipsometric measurements and phase structure
transformations has been established. The structural transition in the vicinity of 573 K, has been found