Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Temperature Dependent Deformation01:12

Temperature Dependent Deformation

205
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
205
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity01:15

Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity

341
Deformation occurs in axial and transverse directions when an axial load is applied to a slender bar. This deformation impacts the cubic element within the bar, transforming it into either a rectangular parallelepiped or a rhombus, contingent on its orientation. This transformation process induces shearing strain. Axial loading elicits both shearing and normal strains. Applying an axial load instigates equal normal and shearing stresses on elements oriented at a 45° angle to the load axis.
341
Deformations in a Symmetric Member in Bending01:18

Deformations in a Symmetric Member in Bending

285
When analyzing the deformation of a symmetric prismatic member subjected to bending by equal and opposite couples, it becomes clear that as the member bends, the originally straight lines on its wider faces curve into circular arcs, with a constant radius centered at a point known as Point C. This phenomenon helps to understand the stress and strain distribution within the member more clearly.
When the member is segmented into tiny cubic elements, it is observed that the primary stress...
285
Deformations in a Transverse Cross Section01:21

Deformations in a Transverse Cross Section

342
When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
342
Shearing Strain01:20

Shearing Strain

678
The shearing strain represents a cubic element's angular change when subjected to shearing stress. This type of stress can transform a cube into an oblique parallelepiped without influencing normal strains. The cubic element experiences a significant transformation when exposed solely to shearing stress. Its shape alters from a perfect cube into a rhomboid, clearly demonstrating the effect of shearing strain. The degree of this strain is considered positive if it reduces the angle between...
678
Metallic Solids02:37

Metallic Solids

19.4K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
19.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of Precompression on Detonation Performance and Products of Energetic Materials: Application to CL-20.

The journal of physical chemistry. C, Nanomaterials and interfaces·2026
Same author

Cationic carbon nanotube modulates surface fields for general acidic CO<sub>2</sub> reduction with aqueous organic cations.

Nature communications·2026
Same author

The mechanism for ligand activation of the Smoothened G protein-coupled receptor.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Bitter taste TAS2R14 and TAS2R46 receptors bound to G proteins: comparison of cryo-EM, AlphaFold, and molecular dynamics structures.

European biophysics journal : EBJ·2026
Same author

Ductile binary FCC materials screened by anisotropic and isotropic elastic criteria: first principle insights into deformation mechanisms.

Scientific reports·2026
Same author

Deciphering competing elementary steps to correlate electrocatalyst chemical state with activity.

Science advances·2026

Related Experiment Video

Updated: Sep 27, 2025

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

2.3K

Compression Induced Deformation Twinning Evolution in Liquid-Like Cu2Se.

Ben Huang1, Guodong Li2,3, Chenyang Xiao2,3

  • 1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.

ACS Applied Materials & Interfaces
|April 13, 2022
PubMed
Summary

Copper selenide (Cu2Se) shows a liquid-like structure above 800 K. Higher temperatures promote deformation twinning, guiding the design of advanced thermoelectric materials.

Keywords:
deformation twinningionic diffusionliquid-like thermoelectric materialplastic flowtemperature effect

More Related Videos

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.2K
Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
06:34

Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes

Published on: January 6, 2023

1.7K

Related Experiment Videos

Last Updated: Sep 27, 2025

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
06:57

Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon

Published on: July 17, 2020

2.3K
Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
09:06

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope

Published on: March 24, 2019

8.2K
Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes
06:34

Finite Element Modeling for the Simulation of the Quasi-Static Compression of Corrugated Tapered Tubes

Published on: January 6, 2023

1.7K

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Computational Materials Science

Background:

  • Copper selenide (Cu2Se) is a promising thermoelectric material with unique liquid-like behavior.
  • Understanding structure-property relationships in Cu2Se is crucial for its practical applications.
  • The behavior of Cu2Se under mechanical stress at high temperatures remains underexplored.

Purpose of the Study:

  • To investigate the structural evolution of beta-copper selenide (β-Cu2Se) under uniaxial compression.
  • To determine how temperature influences the mechanical response and structural stability of Cu2Se.
  • To elucidate the micromechanisms governing deformation and restructuring in liquid-like Cu2Se.

Main Methods:

  • Molecular dynamics simulations were employed to study β-Cu2Se.
  • Simulations covered a temperature range of 400–1000 K under uniaxial compression.
  • Analysis focused on structural changes, deformation modes, and the role of ion diffusion.

Main Results:

  • Above 800 K, Cu2Se exhibits a hybrid structure with a stable Se sublattice and mobile Cu ions.
  • Uniaxial loading induces structural heterogeneity, relieved by diffusion-assisted accommodation.
  • Increasing strain leads to compression-shear deformation and twinning, with higher temperatures promoting twinning.

Conclusions:

  • Higher temperatures enhance structural instability and facilitate deformation twinning in liquid-like Cu2Se.
  • Copper diffusion plays a key role in the mechanical modulation and structural adaptation of Cu2Se.
  • These findings offer insights into the micromechanisms of hybrid structure evolution and provide a theoretical basis for designing advanced Cu2Se thermoelectric materials.