scholarly journals CALCULATION OF THE SURFACE PROPERTIES OF MICROELECTRONICS MATERIALS USING THE MODEL OF COORDINATION MELTING OF A CRYSTAL

2021 ◽  
Author(s):  
Valeriy Bokarev ◽  
Gennady Krasnikov
Keyword(s):  
Crystal Structure ◽  
Surface Energy ◽  
Specific Surface ◽  
Work Function ◽  
Melting Temperature ◽  
Surface Properties ◽  
Electron Work Function ◽  
Specific Surface Energy ◽  
Crystal Melting ◽  
Adhesion Work

In this work, it is shown that the model of coordination crystal melting makes it possible to calculate the values of the specific surface energy of elementary substances and the surface melting temperature of metals, and also relates the anisotropy of the specific surface energy of a crystal with its crystal structure, electron work function, and adhesion work.

Crystallographic anisotropy in surface properties of brass and its dependence on the electron work function

2018 ◽  
Vol 51 (6) ◽  
pp. 1715-1720 ◽  
Author(s):  
Liqiu Guo ◽  
Hao Lu ◽  
D. Y. Li ◽  
Q. X. Huang ◽  
Xu Wang ◽  
...  
Keyword(s):  
Surface Energy ◽  
Work Function ◽  
Surface Properties ◽  
Electron Work Function ◽  
Adhesive Force ◽  
Surface Electron ◽  
Crystallographic Anisotropy ◽  
Atomic Force ◽  
Work Functions ◽  
Crystallographic Planes

The crystallographic anisotropy of the electric current or conductance, adhesive force, elastic modulus, and deformation magnitude of alpha brass were investigated through property mapping using an atomic force microscope. Surface electron work functions of differently oriented grains in the brass were also analyzed using atomic force microscopy. The mapped surface properties are closely related to the electron work function; the work function reflects the surface activity, which is itself dependent on the surface energy. The anisotropy of the properties is closely correlated to the in situ measured surface electron work function. It is demonstrated that crystallographic planes with higher electron work functions exhibit lower current, smaller adhesive forces, larger elastic moduli and smaller deformation magnitudes. Efforts are made to understand the relationships by connecting the properties with surface energy and electron work function. The dependence of the properties on crystallographic orientation can be elucidated by considering the surface electron behavior using electron work function as a novel probing parameter.

The effect of an electric field on the surface energy and electron work function of thin films of alkali metal alloys

2002 ◽  
Vol 28 (6) ◽  
pp. 515-516 ◽  
Author(s):  
V. Z. Kanchukoev ◽  
A. Z. Kashezhev ◽  
A. Kh. Mambetov ◽  
V. A. Sozaev
Keyword(s):  
Thin Films ◽  
Surface Energy ◽  
Alkali Metal ◽  
Electric Field ◽  
Work Function ◽  
Electron Work Function ◽  
Metal Alloys

Effect of Aging on Interfacial Properties of Glass Fiber Reinforced Concrete

1990 ◽  
Vol 211 ◽  
Author(s):  
S. P Shah ◽  
Z. Li ◽  
B. Mobasher
Keyword(s):  
Surface Energy ◽  
Bond Strength ◽  
Specific Surface ◽  
Glass Fiber ◽  
Shear Bond Strength ◽  
Interfacial Properties ◽  
Fiber Reinforced Concrete ◽  
Specific Surface Energy ◽  
Pull Out ◽  
Frictional Bond

AbstractThis paper explores the behavior of the interface of glass fiber and cementitious matrix under the effect of aging. Pull-out tests of multiple alkali resistant glass fiber strands embedded in portland cement paste matrix were conducted. Four different curing regimes of 3 and 14 days normal curing, in addition to 3 and 7 days accelerated aging were employed. A recently developed method of characterizing interfacial properties was used to identify and evaluate the important parameters at interface. The experimental data are presented on the parameter of shear stiffness of a fiber-matrix boundary layer, the shear bond strength, the frictional bond strength and the specific surface energy as a function of fiber embedded length. It was observed that aging had a larger effect on the stiffness of the interface, the shear bond strength and the specific surface energy than on the frictional bond.

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