scholarly journals THICKNESS OF THE SURFACE LAYER, SURFACE ENERGY AND ATOMIC VOLUME OF THE ELEMENT

2018 ◽  
pp. 691-699 ◽  
Author(s):  
V.M. Yurov ◽  
◽  
S.A. Guchenko ◽  
V.Ch. Laurinas ◽  
◽  
...  
Keyword(s):  
Surface Layer ◽  
Surface Energy ◽  
Atomic Volume ◽  
Layer Surface

scholarly journals Rated definition of degree of cutter coating influence upon parameters of surface layer quality of parts worked

2017 ◽  
Vol 2 (7) ◽  
pp. 20-24
Author(s):  
Вячеслав Безъязычный ◽  
Vyacheslav Bezyazychnyy ◽  
Максим Басков ◽  
Maksim Baskov
Keyword(s):  
Surface Roughness ◽  
Surface Layer ◽  
Residual Stresses ◽  
Layer Surface ◽  
Wear Resistant Coatings ◽  
Cutter Wear ◽  
Definition Of ◽  
Surface Layer Quality ◽  
The Impact

The impact of cutter wear-resistant coatings upon cutting process parameters and characteristics of surface layer quality in the parts worked: residual stresses, a degree and a depth of work hardening of a surface layer, surface roughness is investigated.

Anisotropy of Surface Energy and Thickness of the Surface Layer of Magnetic Nanostructures

2021 ◽  
Vol 23 (2) ◽  
pp. 59-62
Author(s):  
Yurov V.M. ◽  
◽  
Goncharenko V.I. ◽  
Oleshko V.S. ◽  
◽  
...  
Keyword(s):  
Surface Layer ◽  
Surface Energy ◽  
Crystal Structures ◽  
Magnetic Nanostructures ◽  
Surface Energy Anisotropy ◽  
Energy Anisotropy

In this work, we show how to calculate the surface energy anisotropy and the thickness of the surface layer of some magnetic nanostructures. As an example, the minerals of magnetite, ulvespineli, ilmenite andpseudobrukite, which have different crystal structures, are considered.

Surface energy and thickness of surface layer of atomic-smooth metals silicides

2019 ◽  
Author(s):  
V. M. Yurov ◽  
E. N. Eremin ◽  
S. A. Guchenko ◽  
V. Ch. Laurinas
Keyword(s):  
Surface Layer ◽  
Surface Energy

scholarly journals Functionalized Surface Layer on Poplar Wood Fabricated by Fire Retardant and Thermal Densification. Part 2: Dynamic Wettability and Bonding Strength

Forests ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 982 ◽  
Author(s):  
Demiao Chu ◽  
Jun Mu ◽  
Stavros Avramidis ◽  
Sohrab Rahimi ◽  
Shengquan Liu ◽  
...  
Keyword(s):  
Contact Angle ◽  
Surface Layer ◽  
Surface Energy ◽  
Bonding Strength ◽  
Sessile Drop ◽  
Combined Treatment ◽  
Treated Wood ◽  
Fire Retardant ◽  
Tangential Section ◽  
Droplet Volume

In continuation of our former study on a novel combined treatment of nitrogen–phosphorus fire retardant and thermomechanical densification on wood, this study focuses on the dynamic wettability and the bonding strength. The contact angle was measured using the sessile drop method and the surface energy was calculated according to the van Oss method. Water surface penetrating and spreading is analyzed by both the Shi and Gardner model and the droplet volume changing model. The results reveal that the combined treatment increased the surface energy, especially the acid–base component. The contact angle declined and the water droplet spread more easily on the surface. Meanwhile, the rate of relative droplet volume decreased by 32.6% because the surface layer was densified and stabilized by the combined process. Additionally, the surface possesses the lowest roughness and highest abrasion resistance on the tangential section. Thus, the bonding strength of the combined treated poplar decreased by 29.7% compared to that of untreated poplar; however, it is still 53.3% higher than that of 220 °C heat-treated wood.

Correlation of the Coefficient of Adhesion With Various Physical and Mechanical Properties of Metals

1963 ◽  
Vol 85 (2) ◽  
pp. 279-285 ◽  
Author(s):  
M. E. Sikorski
Keyword(s):  
Crystal Structure ◽  
Mechanical Properties ◽  
Elastic Modulus ◽  
Surface Energy ◽  
Work Hardening ◽  
Physical And Mechanical Properties ◽  
Atomic Volume ◽  
Recrystallization Temperature ◽  
Bonding Method

The coefficients of adhesion determined by a modification of the twist-compression bonding method are compared with the following properties of metals: crystal structure, hardness, surface energy, elastic modulus, work-hardening properties, recrystallization temperature, purity, and atomic volume. Conclusions are reached regarding the desirable characteristics of metals, or combinations of metals, for antifriction applications.

High entropic coatings FeCrNiTiZrAl and their properties

2021 ◽  
Vol 103 (3) ◽  
pp. 101-114
Author(s):  
V.M. Yurov ◽  
◽  
A.T. Berdibekov ◽  
N.A. Belgibekov ◽  
K.M. Makhanov ◽  
...  
Keyword(s):  
Surface Layer ◽  
Surface Energy ◽  
Metallic Glasses ◽  
High Hardness ◽  
High Entropy Alloy ◽  
Low Friction ◽  
High Entropy ◽  
Order Of Magnitude ◽  
Metal Products ◽  
Complex Crystals

In our proposed empirical model, the anisotropy of the surface energy and the thickness of the surface layer of the high-entropy FeCrNiTiZrAl alloy are calculated. The thickness of the surface layer of this alloy is about 2 nm, which is an order of magnitude greater than the thickness of the surface layer of complex crystals, but is of the same order of magnitude as that of metallic glasses. The hardness and other properties of the high-entropy alloy are the same as for metallic glasses, but are 2-3 times higher than the hardness of stainless steels. The surface energy of the high-entropy FeCrNiTiZrAl alloy is about 2 J/m2, which corresponds to the surface energy of magnesium oxide and other crystals with a high melting point. However, unlike these crystals, the friction coefficients of a high-entropy alloy (~ 0.06) are much lower than that of ordinary steels (~ 0.8). We have theoretically shown that the friction coefficient is proportionally dependent on the surface energy and inversely proportional to the Gibbs energy, which significantly decreases for a high-entropy alloy, leading to low friction. The high hardness and low coefficient of friction of the high-entropy alloy facilitates the deposition of coatings from them on structural metal products, which contributes to their widespread use.

Effect of Sequential Layer-by-Layer Surface Modifications on the Surface Energy of Plasma-Modified Poly(dimethylsiloxane)

Langmuir ◽  
2007 ◽  
Vol 23 (2) ◽  
pp. 667-672 ◽  
Author(s):  
Woo-Sung Bae ◽  
Anthony J. Convertine ◽  
Charles L. McCormick ◽  
Marek W. Urban
Keyword(s):  
Surface Energy ◽  
Surface Modifications ◽  
Layer By Layer ◽  
Layer Surface

Fast Multi-Layer 3D Reconstruction Algorithm

2011 ◽  
Vol 267 ◽  
pp. 827-830
Author(s):  
Shi Guo Liang ◽  
Ou Yang Yi ◽  
Hui Wang
Keyword(s):  
Surface Layer ◽  
3D Reconstruction ◽  
Real Time ◽  
Body Surface ◽  
Reconstruction Algorithm ◽  
Optimization Method ◽  
Layer Surface ◽  
Reconstruction Process ◽  
Pixel Value ◽  
Fast Reconstruction

A fast multi-layer 3d reconstruction algorithm is proposed to realize 3d body surface layer. Based on multi-layer surface reconstructing the shortest triangle line algorithm are proposed. In order to achieve more rapid reconstruction, a fast multi-layer 3D reconstruction algorithm is proposed. When the points on the layers having some errors, or have some offset, during the reconstruction of layered, it will automatically adjust for each pixel value of the selected layer, so that reconstruction process can be completed faster and more accurately . We give optimization method to realize fast reconstruction under real-time environmental.

scholarly journals Анизотропия поверхностной энергии и поверхностного слоя некоторых халькогенидов металлов

2021 ◽  
Vol 70 (1) ◽  
pp. 151-161
Author(s):  
В.М. Юров ◽  
В.И. Гончаренко ◽  
В.С. Олешко
Keyword(s):  
Surface Layer ◽  
Surface Energy ◽  
Empirical Model ◽  
Size Effects ◽  
Metal Chalcogenides ◽  
Physical Effects

The paper proposes an empirical model, which in combination with the model of A.I. Rusanov. makes it possible to calculate the anisotropy of the surface energy and the thickness of the surface layer of metals and their compounds. Calculations were made for six metal chalcogenides. The surface energy and the thickness of the surface layer have a significant effect on nanoelectronics, since in the nanoregion, size effects affect all physical effects

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