Variation in electron work function with temperature and its effect on the Young’s modulus of metals

@article{Rahemi2015VariationIE,
  title={Variation in electron work function with temperature and its effect on the Young’s modulus of metals},
  author={Reza Rahemi and Dongyang Li},
  journal={Scripta Materialia},
  year={2015},
  volume={99},
  pages={41-44}
}

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References

SHOWING 1-10 OF 50 REFERENCES
Correlation between the electron work function of metals and their bulk moduli, thermal expansion and heat capacity via the Lennard–Jones potential
Properties of metallic materials are intrinsically determined by their electron behaviour. However, relevant theoretical treatment involving quantum mechanics is complicated and difficult to be
Dependence of the mechanical behavior of alloys on their electron work function—An alternative parameter for materials design
In this article, we demonstrate that the electron work function (EWF) as an intrinsic parameter can provide information or clues in a simple or straightforward way for material design, modification,
Generic relation between the electron work function and Young's modulus of metals
In this study, efforts were made to establish a generic relation between the Young’s modulus and the electron work function of polycrystalline metals, in which Young’s Modulus was defined as the
In situ measurements of simultaneous electronic behavior of Cu and Al induced by mechanical deformation
Studies of mechanical force acting on electrons inside a solid are of both fundamental and practical importance. This is especially emphasized by the recent applications of the Kelvin probing
Experimental studies on relationships between the electron work function, adhesion, and friction for 3d transition metals
Experimental studies on the relationships between the electron work function (EWF), adhesion and friction for 3d transition metals were reported. EWF was measured using a scanning Kelvin probe.
Electron work function: A parameter sensitive to the adhesion behavior of crystallographic surfaces
The adhesive force (AF) and the electron work function (EWF) of different crystallographic planes of Cu were determined, with the aim of exploring the potential application of the Kelvin method in
Effect of albite particles on the coefficient of thermal expansion behavior of the Al6061 alloy composites
An investigation has been made for the change in coefficient of thermal expansion (CTE) of albite reinforced 6061 aluminum composites. The composites were prepared by the liquid metallurgical
Elastic constants of silver as a function of temperature
The temperature dependence of the elastic constants of silver single crystals has been determined over the range 300–1173 K with the piezoelectric ultrasonic composite oscillator technique (PUCOT).
Elastic moduli of Al-Li alloys treated at a high pressure of 5.4 GPa
The elastic moduli of high pressure treated supersaturated Al-Li solid solutions were measured. An interesting elastic behaviour was observed, in that, the bulk modulus decreased with an increase in
The elastic properties of aluminum at high temperatures
Abstract Thin-line ultrasonic techniques have been used to measure the Young's modulus and shear modulus of polycrystalline aluminum up to 850 K. In both cases, large modulus defects are found at
...
1
2
3
4
5
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