Nanopowders of metals, alloys and other chemical compounds

Nanopowders of metals, alloys and other chemical compounds produced by the method of electrical explosion of the conductor.

 

 

Using the specific properties of nanoparticles can significantly change the properties of particulates and macrostructures, to give a completely different, not the usual properties of substances, solids. For example, to create a new metal compounds, alloys, to improve the characteristics of the usual materials, is only adding a certain amount of nanoparticles, which will fundamentally change the lattice structure or on the physico-mechanical properties of materials.

 

Description

The use of nanopowders of metals, etc., produced by the method of EVP

 


Description:

Nanopowder is a solid powdery substance synthetic origin, nanoparticles, aggregates or agglomerates of nanoparticles or a mixture thereof, it is a powder, the size of all particles is less than 100 nm. Accordingly, artificially obtained nanopowders of metals, alloys and other chemical compounds (oxides and nitrides of metals).

Using the specific properties of nanoparticles can significantly change the properties of particulates and macrostructures, to give a completely different, not the usual properties of substances, solids. For example, to create a new metal compounds, alloys, to improve the characteristics of the usual materials, is only adding a certain amount of nanoparticles, which will fundamentally change the lattice structure or on the physico-mechanical properties of materials.

Nanopowders of metals, alloys and chemical compounds (oxides and nitrides of metals) produced by the method of electrical explosion of wire (EEW) have unique properties:

high chemicalactivity,
weak agglomeration,
the ability to control particle size distribution,
the release of energy that is not associated with the occurrence of chemical processes in the sintering of powders,
powders obtained under certain conditions, is implemented by the block structure of the nanoparticles, i.e. the nanoparticles are composed of individual blocks with dimensions of 3-10 nm (when a chemical reaction specific surface area increases on the order),
the possibility of synthesis of multicomponent nanoparticles of metals with different thermophysical properties (e.g., Al-Fe, Zn-Ni, Zn-si), which allows to synthesize particles with a specified phase composition and tasks of the practice.

 


The use of nanopowders of metals, etc., produced by the method of EVP:

hydrogen energy: the capture, separation and storage of hydrogen,

system broadband electromagnetic protection based nanocomposites

development of nanostructured wear-erosion-coatings based on nanoparticles with high corrosion resistance in aggressive environments and elevated tribological characteristics

development of new heat-resistant sealing materials based on nanoparticles,

development of solders and welding electrode materials of new modifications with nano-sized components,

the development of technology for production of surfacing materials with the use of nanopowders for parts subject to heavy wear

development of technologies of modification of polymer materials with nanoparticles to obtain a high thermal and electrical conductivity,

development of bioactive materials

development of technology for nanomodified coatings with anti-fouling and anti-icing effect,

the nano catalyst, polymer and metal-polymer nanocomposites, high-temperature alloy, alloys ultrarapid solidification,

fine structural ceramics, high-strength alloys, magnetic nanomaterials, materials with special physical properties,

grease and oil additives, heat-conductive and electrically conductive pastes, anticorrosive paint coating of metals,

sorption materials for purification of liquids and gases, filtering materials,

nanomaterials for electronics,

biocompatible materials

magnetic nanoparticles to transport drugs.