INTRINSIC SURFACE AND INTERFACE STRESS OF LOW-DIMENSIONAL CRYSTALS

2002 ◽  
Vol 16 (01n02) ◽  
pp. 64-70 ◽  
Author(s):  
Q. JIANG ◽  
D. S. ZHAO ◽  
M. ZHAO
Keyword(s):  
Theoretical Consideration ◽  
Size Dependence ◽  
Interface Energy ◽  
Liquid Interface ◽  
Interface Stress ◽  
Surface And Interface ◽  
Low Dimensional ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Theoretical Results

Based on the theoretical consideration on the size-dependence of solid-liquid interface energy, a model for the intrinsic interface stress of metallic, ionic and semiconductor nanosolid has been developed, free from adjustable parameters. Modeling predictions agree well with experimental observations and other theoretical results.

Estimation of the solid-liquid interface energy for metal elements

2019 ◽  
Vol 170 ◽  
pp. 109174 ◽  
Author(s):  
Xiaobao Jiang ◽  
Beibei Xiao ◽  
Rui Lan ◽  
Xiaoyan Gu ◽  
Xinghua Zhang ◽  
...  
Keyword(s):  
Interface Energy ◽  
Liquid Interface ◽  
Metal Elements ◽  
Solid Liquid Interface ◽  
Solid Liquid

Solid-Liquid Interface Energy between Silicon Crystal and Silicon-Aluminum Melt

2010 ◽  
Vol 41 (7) ◽  
pp. 1826-1835 ◽  
Author(s):  
Zengyun Jian ◽  
Xiaoqin Yang ◽  
Fange Chang ◽  
Wanqi Jie
Keyword(s):  
Silicon Crystal ◽  
Interface Energy ◽  
Liquid Interface ◽  
Aluminum Melt ◽  
Solid Liquid Interface ◽  
Solid Liquid

Phase-Field Microstructure Solidification of Al–2 wt% Si Alloys

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
J. B. Allen
Keyword(s):  
Directional Solidification ◽  
Phase Field ◽  
Maximum Concentration ◽  
Dendritic Growth ◽  
Interface Energy ◽  
Liquid Interface ◽  
Two Dimensional ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Dilute Alloy

In this work, we develop one- and two-dimensional phase-field simulations to approximate dendritic growth of a binary Al–2 wt% Si alloy. Simulations are performed for both isothermal as well as directional solidification. Anisotropic interface energies are included with fourfold symmetries, and the dilute alloy assumption is imposed. The isothermal results confirm the decrease in the maximum concentration for larger interface velocities as well as reveal the presence of parabolic, dendrite tips evolving along directions of maximum interface energy. The directional solidification results further confirm the formation of distinctive secondary dendritic arm structures that evolve at regular intervals along the unstable solid/liquid interface.

Determination of the Solid-Liquid Interface Energy in the Al-Cu-Ag System

2007 ◽  
Vol 38 (9) ◽  
pp. 1956-1964 ◽  
Author(s):  
A. Bulla ◽  
C. Carreno-Bodensiek ◽  
B. Pustal ◽  
R. Berger ◽  
A. Bührig-Polaczek ◽  
...  
Keyword(s):  
Interface Energy ◽  
Liquid Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid

MODELING OF SURFACE STRESS OF SEMICONDUCTORS

2003 ◽  
Vol 10 (01) ◽  
pp. 49-53
Author(s):  
Q. JIANG ◽  
D. S. ZHAO ◽  
M. ZHAO
Keyword(s):  
Surface Stress ◽  
Interface Energy ◽  
Liquid Interface ◽  
Thermodynamic Consideration ◽  
Covalent Bonds ◽  
Elastic Distortion ◽  
Almost All ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Surrounding Liquid

A general equation for surface stress is established based on a thermodynamic consideration of the size dependence of solid–liquid interface energy under an assumption that the solid–liquid interface of a particle immersed in surrounding liquid disappears when almost all atoms of the particle are located on its surface. The predicted surface stresses of semiconductors in terms of the model are in agreement with the first principles calculations and calculations based on forces associated with the elastic distortion of the covalent bonds.

Solid–liquid interface energy of silicon

2006 ◽  
Vol 54 (12) ◽  
pp. 3227-3232 ◽  
Author(s):  
Z JIAN ◽  
K KURIBAYASHI ◽  
W JIE ◽  
F CHANG
Keyword(s):  
Interface Energy ◽  
Liquid Interface ◽  
Solid Liquid Interface ◽  
Solid Liquid

Effects of the Flow Speed on Dendritic Growth in Phase-Field Simulation of Binary Alloy with Convection

2012 ◽  
Vol 217-219 ◽  
pp. 1516-1519 ◽  
Author(s):  
Wen Yuan Long ◽  
Wei Dong Wang ◽  
Jun Ping Yao
Keyword(s):  
Binary Alloy ◽  
Phase Field ◽  
Flow Speed ◽  
Liquid Interface ◽  
Forced Flow ◽  
Solute Boundary Layer ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Solute Gradient ◽  
Theoretical Results

A phase-field approach which incorporates mass and momentum and solute conservation equations for simulation of Al-Si binary alloy solidification is studied. The effect of force flow on the dendrite growth and solute profile during the solidification of binary alloy were investigated. The results indicate that dendritic grows unsymmetrically under a forced flow, the growth velocity of the upstream tip is faster than the downstream tip. With the force flow, the upstream tip grows faster due the thinner solute boundary layer. The solute gradient in the solid/liquid interface regions of the upstream tip is higher than that of the downstream tip. The faster the flow velocity, the greater the solute gradients in the solid/liquid interface regions of the upstream tip, the thinner the diffusion layer before the upstream tip. The downstream tip is opposed to the upstream tip. The simulations agree qualitatively with the solidification theoretical results.

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