A New Method and Equipment to Manufacture the Composite Powder Materials by Vacuum Co-Deposition of Double Sources

2010 ◽  
Vol 129-131 ◽  
pp. 626-630
Author(s):  
Shi Wei Zhang ◽  
Li Yuan Hou ◽  
Yong Chao Han ◽  
Yuan Hua Xie
Keyword(s):  
Composite Materials ◽  
Magnetron Sputtering ◽  
Composite Powder ◽  
Film Coating ◽  
New Method ◽  
Chemical Components ◽  
Powder Materials ◽  
Electric Resistance ◽  
Rate Calculation ◽  
Coil Coating

In the process of manufacturing the composite materials, some of the chemical components are difficult to combine with each other. Aiming at this problem, a new method and supporting equipment of manufacturing the composite powder materials is reported which can make any two (or more) kinds of components mixing in nano-scale. This method is derived from the vacuum co-depositing technology by two (or more) vaporization sources for vacuum film coating, and some of the structures in vacuum film coil coating machine are used for reference. The principle, structure, process and characteristics of this method are introduced in detail. The models for depositing rate calculation are built respectively for both the electric resistance evaporation sources and the magnetron sputtering targets. The mixing component uniformity in the depositing powder material is analyzed by calculation.

Methods of combined production of composite powder materials and functional coatings on their basis

2019 ◽  
pp. 81-87 ◽  
Author(s):  
T. I. Bobkova ◽  
N. A. Sokolova ◽  
A. M. Makarov ◽  
D. A. Geraschenkov ◽  
B. V. Farmakovsky
Keyword(s):  
Composite Materials ◽  
Composite Powder ◽  
High Hardness ◽  
Powder Materials ◽  
Functional Coatings ◽  
Composite Powders ◽  
High Adhesion ◽  
Gradient Coatings ◽  
High Mechanical Stress ◽  
Al Matrix

A technology for producing powder composite materials consisting of ductile Fe-Cr-Al matrix, a cladding component based on chromium and aluminum nitrides and solid nanosized tungsten carbide composites has been developed. Functional gradient coatings were obtained on basis of the developed powders by microplasma spraying, combining high adhesion and cohesive strength with high hardness of peripheral layers. So coatings based on the developed composite powders are very promising for the protection of parts and components of precision and power engineering from wear under high mechanical stress.

Nanostructured powders based on aluminum reinforced by silicon nitride designed for spraying of multifunctional strengthened coatings

2019 ◽  
pp. 65-73
Author(s):  
T. I. Bobkova ◽  
B. V. Farmakovsky ◽  
N. A. Sokolova
Keyword(s):  
Silicon Nitride ◽  
Composite Powder ◽  
High Energy ◽  
Cold Gas Dynamic Spraying ◽  
Powder Materials ◽  
Structure And Properties ◽  
Gas Dynamic ◽  
Composition Structure ◽  
New Phase ◽  
Nanostructured Powders

The work deals with topical issues such as development of composite nanostructured powder materials. The results of creating powders based on the system “aluminum–nitride of silicon” are presented. Complex investigations of the composition, structure and properties of powder materials, as well as coatings formed on their basis by supersonic cold gas dynamic spraying, were carried out. It has been found that the high-energy treatment of a powder mixture of aluminum with nanofibers of silicon nitride provides the formation of a composite powder in which a new phase of the Si(1-х)AlхO(1-х)Nх type is formed, which additionally increases the hardness in the coatings to be sprayed.

Technology for the production of nanostructured coatings from nanoparticles of tungsten carbide and metal chromium

2020 ◽  
pp. 117-124
Author(s):  
T. I. Bobkova ◽  
R. Yu. Bystrov ◽  
A. A. Grigoriev ◽  
E. A. Samodelkin ◽  
B. V. Farmakovsky
Keyword(s):  
Tungsten Carbide ◽  
Composite Powder ◽  
Nanostructured Coatings ◽  
Powder Materials ◽  
Metallic Chromium ◽  
Complex Processes ◽  
Functionally Gradient ◽  
High Microhardness ◽  
Gradient Coatings ◽  
Technological Methods

This paper presents results of a study of complex processes for producing composite powder materials from tungsten carbide and metallic chromium. Technological methods for the formation of functionally gradient coatings with high microhardness up to 426 HV through microplasma spraying technology are disclosed.

A new method of manufacturing products from polymeric composite materials

2020 ◽  
Author(s):  
D. A. Negrov ◽  
E. N. Eremin ◽  
A. A. Novikov ◽  
V. Yu. Putintsev
Keyword(s):  
Composite Materials ◽  
Polymeric Composite ◽  
New Method ◽  
Polymeric Composite Materials

Evaluation of the Thermal Stability of Composite Powder Materials in a Plasma Jet

2021 ◽  
Author(s):  
I. N. Kravchenko ◽  
Yu. A. Kuznetsov ◽  
A. L. Galinovskii ◽  
S. A. Velichko ◽  
P. A. Ionov ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Composite Powder ◽  
Plasma Jet ◽  
Powder Materials ◽  
Thermal Stability Of

The Tool’s Optimum Geometry Research for Obtaining Apertures in Semi-Cured Polymer Composite Materials

2021 ◽  
Vol 882 ◽  
pp. 114-120
Author(s):  
Mikhail Andreevich Komkov ◽  
Tatyana Vladimirovna Vasilyeva ◽  
Yuriy Nikolaevich Khokhlov ◽  
Mary Alekseevna Prokhorova
Keyword(s):  
Numerical Modeling ◽  
Composite Materials ◽  
Polymer Composite ◽  
Optimal Shape ◽  
Polymer Composite Materials ◽  
New Method ◽  
Optimum Geometry ◽  
Fibrous Polymer ◽  
Fibrous Polymer Composite

The composite materials features and characteristic defects in the obtaining apertures by machining are considered. A new method for forming apertures in fibrous polymer composite materials is proposed. The optimal shape of a tool for piercing holes is determined. The profiles of the pointed part of the tool are compared using numerical modeling.

Pseudo-three-timescale approximation of exponentially modulated free-surface waves

2009 ◽  
Vol 625 ◽  
pp. 435-443 ◽  
Author(s):  
MARK A. KELMANSON
Keyword(s):  
Free Surface ◽  
Surface Waves ◽  
Test Problem ◽  
Evolution Equations ◽  
Film Coating ◽  
Rotating Cylinder ◽  
New Method ◽  
Free Surface Waves ◽  
Numerical Integrations ◽  
Order Of Magnitude

A novel pseudo-three-timescale asymptotic procedure is developed and implemented for obtaining accurate approximations to solutions of an evolution equation arising in thin-film free-surface viscous flow. The new procedure, which employs strained fast and slow timescales, requires considerably fewer calculations than its standard three-timescale counterpart employing fast, slow and slower timescales and may readily be applied to other evolution equations of fluid mechanics possessing wave-like solutions exhibiting exponential decay in amplitude and variations in phase over disparate timescales. The new method is validated on the evolution of free-surface waves on a thin, viscous film coating the exterior of a horizontal rotating cylinder and is shown to yield accurate solutions up to non-dimensional times exceeding by an order of magnitude those of previous related studies. Results of the new method applied to this test problem are demonstrated to be in excellent agreement, over large timescales, with those of corroborative spectrally accurate numerical integrations.

Innovative research carried out at the nanocenter of the NRC “Kurchatov Institute” – CRISM “Prometey”

2021 ◽  
pp. 82-108
Author(s):  
T. I. Bobkova ◽  
R. Yu. Bystrov ◽  
O. V. Vasilieva ◽  
A. F. Vasiliev ◽  
D. A. Gerashchenkov ◽  
...  
Keyword(s):  
Surface Modification ◽  
Composite Materials ◽  
Magnetron Sputtering ◽  
Alternative Energy ◽  
Technical Equipment ◽  
Structural Ceramics ◽  
Kurchatov Institute ◽  
Biological Objects ◽  
The Past ◽  
Innovative Research

This article presents the results of comprehensive innovative research carried out over the past 15 years at the Nanocenter of the NRC “Kurchatov Institute” – CRISM “Prometey” in the following areas: the creation of coatings based on quasicrystals of the Al-Cu-Fe system, laser synthesis technologies, systems electromagnetic protection of technical equipment and biological objects, structural ceramics and composite materials, technologies for surface modification and magnetron sputtering, obtaining powders by melt spraying, hydrogen and alternative energy.

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