Competing effect of dispersed particles on the generalized conductivity of composite materials

2020 ◽  
Author(s):  
Elena Romanovskaya ◽  
Svetlana Berestova ◽  
Natalya Romanovskaya
Keyword(s):  
Composite Materials ◽  
Dispersed Particles

scholarly journals Measurement of Particle Sizes in Composite Materials Containing Dispersed Particles

1971 ◽  
Vol 28 (317) ◽  
pp. 715-718,769
Author(s):  
Akira Nakayama ◽  
Tadashi Ohsawa ◽  
Kazuo Mihira
Keyword(s):  
Composite Materials ◽  
Particle Sizes ◽  
Dispersed Particles

Review of composite metal polymers reinforced with nano- and ultra-dispersed particles

2021 ◽  
pp. 424-432
Author(s):  
V.N. Gadalov ◽  
O.M. Gubanov ◽  
I.V. Vornacheva ◽  
V.R. Petrenko ◽  
I.A. Makarova
Keyword(s):  
Atomic Force Microscopy ◽  
Composite Materials ◽  
Thin Layer ◽  
Polymer Matrix ◽  
Fine Particles ◽  
Force Microscopy ◽  
Mechanical And Tribological Properties ◽  
Atomic Force ◽  
Dispersed Particles ◽  
Ultra Fine Particles

The results of studies of the structure, mechanical and tribological properties of composite materials based on polytetrafluoroethylene and simple (Al2O3, Cr2O3, ZrO2) and complex (spinels CoA12O3 and MgAl2O4, and cordierite 2MgO—2Al2O35SiO2) oxide nanopowders are presented; as well as amorphous polyvinyl chloride with heat stabilizers and elastomeric additives. Investigations of thin-layer fluorine-containing coatings with a polymer matrix modified by nano- and ultra-fine particles of diamond-containing graphite by atomic force microscopy are presented.

scholarly journals Some features of mass transfer in composite materials

2018 ◽  
Vol 50 (4) ◽  
pp. 395-400
Author(s):  
A.F. Lisovsky
Keyword(s):  
Mass Transfer ◽  
Composite Materials ◽  
Mobile Phase ◽  
Phase System ◽  
Two Phase ◽  
Dispersed Systems ◽  
Dispersed Particles

The paper deals with the process of mass transfer in a two-phase system which consists of a mobile phase (a liquid or a gas) and dispersed particles forming a spacial structure, i.e. a skeleton. It is shown that in systems like this the process of the mobile phase transfers is greatly affected by forces generated at both interfaces and particle boundaries. These forces are responsible for new regularities of the mass transfer in dispersed systems, in particular, a spontaneous increase in an intensive variable is a possibility.

scholarly journals Investigation of the Influence of the Synthesized Iron-Carbide Mixture on the Adhesive and Mechanical Properties of Epoxy Composites for Parts of Transport Machines

2020 ◽  
Vol 10 (5) ◽  
pp. 6214-6219
Author(s):  
A. Buketov ◽  
O. Syzonenko ◽  
D. Kruglyj ◽  
T. Cherniavska ◽  
E. Appazov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Protective Coatings ◽  
Iron Carbide ◽  
Experimental Studies ◽  
Physical And Mechanical Properties ◽  
Epoxy Oligomer ◽  
Epoxy Composites ◽  
Dispersed Particles ◽  
Polyethylene Polyamine

Epoxy-diane oligomer ED-20, hardener polyethylene polyamine, and micro dispersed particles of iron-carbide mixture synthesized by high-voltage electric discharge have been used for the formation of Composite Materials (CMs) and protective coatings for the transport industry. The dependence of the adhesive, physical, and mechanical properties and residual stresses of epoxy composites on the content of micro dispersed powders has been studied in this paper. It has been proved that for the formation of a composite material or protective coating with improved adhesion and cohesion properties, the optimal content of particles is 0.5 wt.% per 100 wt.% of epoxy oligomer ED-20. Such materials are characterized by increased mechanical strength and the ability to resist static and shock loads, as their properties are significantly increased. The obtained results of the experimental studies of the physical and mechanical properties of composite materials correlate with the studied results of adhesive characteristics, which indicate their veracity.

Comparative Microstructures of Ion Milled and Electrochemically Thinned Composite Materials

1974 ◽  
Vol 32 ◽  
pp. 546-547
Author(s):  
R.R. Russell
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Composite Materials ◽  
Great Difficulty ◽  
Ion Milling ◽  
Transmission Electron ◽  
Ion Damage ◽  
Intermetallic Composite

Transmission electron microscopy of metallic/intermetallic composite materials is most challenging since the microscopist typically has great difficulty preparing specimens with uniform electron thin areas in adjacent phases. The application of ion milling for thinning foils from such materials has been quite effective. Although composite specimens prepared by ion milling have yielded much microstructural information, this technique has some inherent drawbacks such as the possible generation of ion damage near sample surfaces.

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