Correction: Character angle effects on dissociated dislocation core energy in aluminum
1Mechanics of Materials Department, Sandia National Laboratories, Livermore, California 94550, USA. xzhou@sandia.gov.
Physical Chemistry Chemical Physics : PCCP
|May 18, 2022
Summary
This correction clarifies the impact of character angle on the energy of dissociated dislocation cores in aluminum. It refines understanding of core energy calculations in materials science.
Area of Science:
- Materials Science
- Physical Chemistry
- Computational Materials Science
Context:
- The original study investigated the effects of character angles on dissociated dislocation core energy in aluminum.
- Dislocations are critical defects influencing material properties.
- Accurate calculation of dislocation core energy is essential for predicting material behavior.
Purpose:
- To correct and refine the findings presented in the original publication.
- To ensure the accuracy of data regarding the influence of character angle on dislocation core energy.
- To provide a more precise understanding of dislocation behavior in aluminum.
Summary:
- This work provides a correction to the previously published article 'Character angle effects on dissociated dislocation core energy in aluminum'.
- The correction addresses specific aspects of the character angle's influence on the energy associated with dissociated dislocation cores.
- Refined calculations and analysis are presented to improve the accuracy of the reported energies.
Impact:
- Ensures the reliability of scientific data for researchers in materials science and solid mechanics.
- Contributes to a more accurate understanding of plastic deformation mechanisms in metals.
- Facilitates improved predictive models for material performance under stress.
Related Concept Videos
Unsymmetric Bending - Angle of Neutral Axis
469
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
469
Crystal Field Theory - Octahedral Complexes
28.1K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
28.1K
Bonding in Metals
48.3K
Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”.
48.3K
Electrostatic Boundary Conditions in Dielectrics
1.4K
When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...
1.4K
Relative Stabilities of Alkenes
14.3K
The relative stability of alkenes can be determined by comparing their heats of hydrogenation. The lower heat of hydrogenation indicates the more stable alkene. The three main factors determining the relative stability of alkenes are i) the number of substituents attached to the double-bond carbon atoms, ii) hyperconjugation, and iii) the stereochemistry of the double bond.
14.3K
Potential Due to a Polarized Object
482
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
482


