1530 First principles estimation of relationship betwenn chemical potential of hydrogen and equilibrium vacancy concentration in α-iron

2013 ◽  
Vol 2013.26 (0) ◽  
pp. _1530-1_-_1530-3_
Author(s):  
Takeshi FUJIWARA ◽  
Ryosuke MATSUMOTO
Keyword(s):  
First Principles ◽  
Chemical Potential ◽  
Vacancy Concentration ◽  
Equilibrium Vacancy ◽  
Equilibrium Vacancy Concentration

First-Principles Characterization of Equilibrium Vacancy Concentration in Metamagnetic Shape Memory Alloys: An Example of Ni2 MnGa

2018 ◽  
Vol 255 (2) ◽  
pp. 1700523 ◽  
Author(s):  
Yuhao Wang ◽  
Daniel Salas ◽  
Bharat Medasani ◽  
Peter Entel ◽  
Ibrahim Karaman ◽  
...  
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
First Principles ◽  
Vacancy Concentration ◽  
Equilibrium Vacancy ◽  
Equilibrium Vacancy Concentration

Equilibrium vacancy concentration in an alloy with interstitial impurities

1981 ◽  
Vol 24 (4) ◽  
pp. 338-342
Author(s):  
V. A. Klimenko ◽  
S. I. Masharov ◽  
A. F. Rybalko ◽  
N. M. Rybalko ◽  
N. I. Timofeev
Keyword(s):  
Vacancy Concentration ◽  
Interstitial Impurities ◽  
Equilibrium Vacancy ◽  
Equilibrium Vacancy Concentration

Asymptotic analysis of some two-dimensional diffusion problems

1995 ◽  
Vol 448 (1933) ◽  
pp. 213-236 ◽  
Keyword(s):  
Linear Problem ◽  
Vacancy Concentration ◽  
Surface Concentration ◽  
Two Dimensional ◽  
Surface Source ◽  
Dimensional Diffusion ◽  
Equilibrium Vacancy ◽  
Equilibrium Vacancy Concentration ◽  
Dimensional Surface ◽  
Diffusion Problems

In this paper we discuss two-dimensional surface source and implant problems for a substitutional-interstitial diffusion model. We present asymptotic solutions in the limit of the surface concentration of impurity (or peak concentration of the implant) being far greater than the equilibrium vacancy concentration. Using leading order composite solutions we plot contours of constant impurity concentration. Some of these contours differ markedly from those of the corresponding linear problem, having the ‘bird’s beak’ shape which is frequently observed in experiments. We also discuss a two-dimensional surface source problem for a va­cancy model.

Equilibrium Vacancy Concentration Driven by Undetectable Impurities

2015 ◽  
Vol 115 (1) ◽  
Author(s):  
Thomas Schuler ◽  
Caroline Barouh ◽  
Maylise Nastar ◽  
Chu-Chun Fu
Keyword(s):  
Vacancy Concentration ◽  
Equilibrium Vacancy ◽  
Equilibrium Vacancy Concentration
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