scholarly journals Structural and chemical disorder enhance point defect diffusion and atomic transport in Ni3Al-based γ′ phase

2021 ◽  
Vol 207 ◽  
pp. 116704
Author(s):  
Shijun Zhao ◽  
Yuri Osetsky
Keyword(s):  
Point Defect ◽  
Defect Diffusion ◽  
Atomic Transport ◽  
Chemical Disorder

Steady-state point-defect diffusion profiles in solids during irradiation

1974 ◽  
Vol 23 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Nghi Q. Lam ◽  
Steven J. Rothman ◽  
Rudolf Sizmanns
Keyword(s):  
Steady State ◽  
Point Defect ◽  
Defect Diffusion ◽  
State Point ◽  
Diffusion Profiles

Point-defect diffusion in a strained crystal

1982 ◽  
Vol 25 (12) ◽  
pp. 7428-7440 ◽  
Author(s):  
C. N. Tomé ◽  
H. A. Cecatto ◽  
E. J. Savino
Keyword(s):  
Point Defect ◽  
Defect Diffusion ◽  
Strained Crystal

Anisotropy of point defect diffusion in alpha-zirconium

2002 ◽  
Vol 33 (3) ◽  
pp. 777-782 ◽  
Author(s):  
Y. N. Osetsky ◽  
D. J. Bacon ◽  
N. de Diego
Keyword(s):  
Point Defect ◽  
Defect Diffusion

scholarly journals Modeling of Point Defects Annihilation in Multilayered Cu/Nb Composites under Irradiation

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Sarah Fadda ◽  
Antonio Mario Locci ◽  
Francesco Delogu
Keyword(s):  
Point Defect ◽  
Point Defects ◽  
Surface Recombination ◽  
Multilayer Composite ◽  
Balance Equations ◽  
General Validity ◽  
Defect Diffusion ◽  
Temperature Radiation ◽  
General Tool

This work focuses on a mathematical modeling of the response to irradiation of a multilayer composite material. Nonstationary balance equations are utilized to account for production, recombination, transport, and annihilation, or removal, of vacancies and interstitials at interfaces. Although the model developed has general validity, Cu/Nb multilayers are used as case study. Layer thickness, temperature, radiation intensity, and surface recombination coefficients were varied systematically to investigate their effect on point defect annihilation processes at interfaces. It is shown that point defect annihilation at interfaces mostly depends on point defect diffusion. The ability of interfaces to remove point defects can be described by a simple map constructed using only two dimensionless parameters, which provides a general tool to estimate the efficiency of vacancy and interstitial removal in multilayer composite materials.

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