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

Measurements of Strain01:27

Measurements of Strain

2.6K
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
2.6K
Stress-Strain Diagram01:10

Stress-Strain Diagram

3.8K
A stress-strain diagram is a crucial tool that graphically displays a material's mechanical characteristics. This diagram is derived from a tensile test performed on a carefully prepared cylindrical specimen. The specimen has two gauge marks inscribed on its central part, and the distance between these marks is known as the gauge length. The cylindrical specimen is placed in a testing machine, which applies an increasing centric load. As this load grows, so does the gauge length. This...
3.8K
Three-Dimensional Analysis of Strain01:29

Three-Dimensional Analysis of Strain

650
Three-dimensional strain analysis is crucial for understanding how materials deform under stress, particularly in elastic, homogeneous materials. This method employs principal stress axes to simplify complex stress states into more understandable forms. Subjected to stress, a small cubic element within a material either expands or contracts along these axes, transforming into a rectangular parallelepiped. This transformation effectively illustrates the material's deformation. The principal...
650
True Stress and True Strain01:28

True Stress and True Strain

890
Engineering stress is calculated as the load divided by the original, undeformed cross-sectional area. It approximates a material under load. This approximation is especially relevant post-yield in ductile materials. Though engineering stress-strain diagrams are often used for their convenience and accessibility, they can sometimes fall short in accuracy, particularly when dealing with large strain values.
In contrast, true stress offers a more precise portrayal. It is computed by dividing the...
890
Stress-Strain Diagram - Ductile Materials01:24

Stress-Strain Diagram - Ductile Materials

2.2K
The stress-strain relationship in ductile materials such as structural steel or aluminium is intricate and progresses through several stages. When a specimen is loaded, it initially exhibits a linear length increase, depicted by a steep straight line on the stress-strain diagram. It indicates the material is elastically deforming and will return to its original shape once unloaded. However, when a critical stress value is reached, plastic deformation begins. This stage sees substantial...
2.2K

You might also read

Related Articles

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

Sort by
Same author

Orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum.

Science (New York, N.Y.)·2026
Same author

Towards reliable electrical measurements of superconducting devices inside a transmission electron microscope.

Ultramicroscopy·2026
Same author

Optically Induced Irreversible Ferroelastic and Ferroelectric Switching in Epitaxial BaTiO<sub>3</sub> Films on Silicon.

ACS nano·2025
Same author

Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers.

Nature communications·2025
Same author

Switchable Exchange Bias Resulting From Correlated Domain Structures in Orthogonally Coupled Antiferromagnet/Ferromagnet van der Waals Heterostructures.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Magnetically "Programming" Cobalt-Doped Iron Oxide Nanoparticles for Localized Induction Heating: Triggering a Collective Effect of Magnetic Moment Alignment on Demand.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: Feb 22, 2026

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.5K

Electron microscopy by specimen design: application to strain measurements.

Nikolay Cherkashin1, Thibaud Denneulin2, Martin J Hÿtch2

  • 1CEMES, CNRS, 29 rue Jeanne Marvig, 31055 TOULOUSE, Cedex 4, France. nikolay.cherkashin@cemes.fr.

Scientific Reports
|October 1, 2017
PubMed
Summary

This study introduces novel sample preparation methods for transmission electron microscopy (TEM) to create controlled moiré patterns. These techniques enable precise nanoscale strain measurements using basic electron microscopes.

More Related Videos

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
07:15

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

Published on: June 2, 2017

9.7K
Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.8K

Related Experiment Videos

Last Updated: Feb 22, 2026

Production of a Strain-Measuring Device with an Improved 3D Printer
06:17

Production of a Strain-Measuring Device with an Improved 3D Printer

Published on: January 30, 2020

6.5K
A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens
07:15

A Novel Method for In Situ Electromechanical Characterization of Nanoscale Specimens

Published on: June 2, 2017

9.7K
Micro/Nano-scale Strain Distribution Measurement from Sampling Moir&#233; Fringes
06:56

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes

Published on: May 23, 2017

12.8K

Area of Science:

  • Materials Science
  • Microscopy Techniques
  • Nanotechnology

Background:

  • Advanced transmission electron microscopy (TEM) relies on complex instrumentation and specialized sample preparation.
  • Conventional methods focus on creating thin foils of uniform thickness for TEM analysis.
  • Innovations in ion beam instruments have improved sample preparation capabilities for diverse materials.

Purpose of the Study:

  • To demonstrate that strategic specimen geometry design can significantly enhance TEM experiments.
  • To introduce new sample preparation methods for generating controlled moiré patterns in monocrystalline structures.
  • To enable accurate strain measurements and mapping using standard TEM imaging modes.

Main Methods:

  • Development of two distinct sample preparation techniques for controlled moiré pattern formation.
  • Application of these methods to general monocrystalline structures in cross-section and at specific sites.
  • Creation of moiré image treatment algorithms with absolute correction for TEM projection lens distortions.

Main Results:

  • Successful formation of controlled moiré patterns in prepared samples.
  • Achievement of nanometer-resolution strain measurements and mapping with 10^-4 precision.
  • Demonstration that experiments can be performed on basic electron microscopes without advanced configurations.

Conclusions:

  • Judicious specimen geometry design is crucial for advancing TEM capabilities.
  • The proposed methods offer a versatile approach for strain analysis in various crystalline materials.
  • This technique holds potential for broader applications in imaging and diffraction across different scientific fields.