Biaxial stress effects on magnetization perpendicular to the stress plane

1995 ◽  
Vol 31 (6) ◽  
pp. 3665-3667 ◽  
Author(s):  
M.J. Sablik ◽  
H. Kwun ◽  
G.L. Burkhardt ◽  
R.A. Langman
Keyword(s):  
Biaxial Stress ◽  
Stress Effects ◽  
Stress Plane

Biaxial stress effects on estimating J under combined mechanical and thermal stresses

2011 ◽  
Vol 88 (10) ◽  
pp. 365-374 ◽  
Author(s):  
Chang-Young Oh ◽  
Yun-Jae Kim ◽  
Peter Budden ◽  
Robert A. Ainsworth
Keyword(s):  
Thermal Stresses ◽  
Biaxial Stress ◽  
Stress Effects

Stress Effects on As Activation in Si

2007 ◽  
Vol 994 ◽  
Author(s):  
Chihak Ahn ◽  
Scott T Dunham
Keyword(s):  
Density Functional Theory ◽  
Tensile Stress ◽  
Density Functional ◽  
Formation Energy ◽  
Biaxial Stress ◽  
Lattice Expansion ◽  
Stress Dependence ◽  
Functional Theory ◽  
Minimal Impact ◽  
Stress Effects

AbstractWe studied stress effects on As activation in silicon using density functional theory. Based on lattice expansion coefficient, we calculated formation energy change due to applied stress and plotted the stress dependence of AsmV concentration. We found that biaxial stress results in minimal impact on As activation, which is consistent with experimental observation by Sugii et al. [J. Appl. Phys. 96, 261 (2004)], who found no significant change in As activation under tensile stress.

Nonhydrostatic Stress Effects on Boron Diffusion in SI

1997 ◽  
Vol 469 ◽  
Author(s):  
Michael J. Aziz
Keyword(s):  
Hydrostatic Pressure ◽  
Hydrostatic Stress ◽  
Diffusion Mechanism ◽  
Biaxial Stress ◽  
Extended Defects ◽  
Boron Diffusion ◽  
Stress Effects ◽  
Atomistic Calculations ◽  
Strained Films

ABSTRACTThe thermodynamics of diffusion under hydrostatic pressure and nonhydrostatic stress is developed for single crystals free of extended defects and is applied to the case of boron diffusion in silicon. The thermodynamic relationships obtained permit the direct comparison of hydrostatic and biaxial stress experiments and of atomistic calculations under hydrostatic stress. Assuming various values for the anisotropy in the migration strain, a currently unknown parameter, comparison is made between various measurements under hydrostatic pressure and nonhydrostatic stress, and various atomistic calculations of the volumetrics of B and Si diffusion by an interstitial-based mechanism. An independent determination of the anisotropy of the migration strain would permit a parameter-free determination of the predominant diffusion mechanism and would permit the prediction of the ratio of the diffusivity normal to the free surface to the diffusivity parallel to the surface for biaxially strained films. Procedures for measuring and calculating the anisotropy in the migration strain are described.

Three-dimensional stress effects on time-dependent swelling behaviour of shaly rocks

2003 ◽  
Vol 40 (3) ◽  
pp. 501-511 ◽  
Author(s):  
B C Hawlader ◽  
Y N Lee ◽  
K Y Lo
Keyword(s):  
Applied Stress ◽  
Axial Stress ◽  
Three Dimensional ◽  
Biaxial Stress ◽  
Time Dependent ◽  
Stress Effect ◽  
Stress Effects ◽  
Proposed Model ◽  
Laboratory Test Results ◽  
Swelling Strain

This paper presents a time-dependent constitutive model that has been developed for the swelling of shaly rocks. Laboratory test results on many shales, including Queenston shale, show that the swelling of these rocks depends on the applied stresses. The applied stress in one principal stress direction reduces swelling strain not only in that direction but also in the perpendicular directions. It was found that swelling strain reductions are nonlinearly dependent on applied stress. The reduction in lateral swelling caused as a result of axial stress is modeled using the "pseudo-Poisson's effect". The proposed model is used to simulate the development of swelling strain with time under uniaxial and biaxial stress conditions. Comparison between the computed and experimental results shows that the pseudo-Poisson's effect is a key parameter for simulating the observed time-dependent swelling.Key words: swelling, Queenston shale, modeling, three-dimensional stress effect, nonlinearity.

Sign in / Sign up

Export Citation Format

Share Document