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.

scholarly journals Electro-bending characterization of adaptive 3D fiber reinforced plastics based on shape memory alloys

2016 ◽  
Vol 25 (3) ◽  
pp. 035041 ◽  
Author(s):  
Moniruddoza Ashir ◽  
Lars Hahn ◽  
Axel Kluge ◽  
Andreas Nocke ◽  
Chokri Cherif
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics

A new approach to characterization of the transition temperatures of thin film NiTi shape memory alloys

2004 ◽  
Vol 19 (6) ◽  
pp. 1762-1767
Author(s):  
Nicholas W. Botterill ◽  
David M. Grant ◽  
Jianxin Zhang ◽  
Clive J. Roberts
Keyword(s):  
Thin Film ◽  
Shape Memory Alloys ◽  
Shape Memory ◽  
Transition Temperatures ◽  
New Approach ◽  
Novel Approach ◽  
Potential Applications ◽  
Niti Shape Memory Alloys

A novel approach in determining the transition temperatures of NiTi shape memory alloys was investigated and compared with conventional techniques. The technique is based on microthemal analysis using a scanning thermal microscope (SThM). In particular, this method has the potential to allow the transformation temperatures of thin films to be investigated in situ. Thin film shape memory alloys have potential applications, such as microactuators, where conventional analysis techniques are either not directly applicable to such samples or are difficult to perform.

Sign in / Sign up

Export Citation Format

Share Document