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 Experiment Videos

Misorientation distributions in hot deformed NaCl using electron backscattered diffraction.

G M Pennock1, M R Drury, P W Trimby

  • 1Vening Meimesz Research School of Geodynamics, Faculty of Earth Sciences, Utrecht University, The Netherlands. gpennock@geo.uu.nl

Journal of Microscopy
|May 9, 2002
PubMed
Summary

This study on hot-deformed sodium chloride (NaCl) reveals how data processing and step size affect subgrain misorientation distributions. Noise significantly impacts low-angle misorientations, but average misorientation values remain reliable across different step sizes.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Nucleation of Stick-Slip Instability Within a Large-Scale Experimental Fault: Effects of Stress Heterogeneities Due to Loading and Gouge Layer Compaction.

Journal of geophysical research. Solid earth·2020
Same author

Boom boom pow: Shock-facilitated aqueous alteration and evidence for two shock events in the Martian nakhlite meteorites.

Science advances·2019
Same author

Investigating Compaction by Intergranular Pressure Solution Using the Discrete Element Method.

Journal of geophysical research. Solid earth·2018
Same author

FIB-SEM cathodoluminescence tomography: practical and theoretical considerations.

Journal of microscopy·2011
Same author

Cryogenic EBSD on ice: preserving a stable surface in a low pressure SEM.

Journal of microscopy·2010
Same author

Tomography of insulating biological and geological materials using focused ion beam (FIB) sectioning and low-kV BSE imaging.

Journal of microscopy·2009

Area of Science:

  • Materials Science
  • Crystallography
  • Geophysics

Background:

  • Subgrain boundary misorientation distributions are crucial for understanding material deformation.
  • Electron Backscatter Diffraction (EBSD) is a key technique for analyzing these distributions.
  • Hot-deformed sodium chloride (NaCl) provides a model system for studying plastic deformation mechanisms.

Purpose of the Study:

  • To investigate the impact of data processing, noise, and step size on subgrain misorientation distributions in hot-deformed NaCl.
  • To assess the influence of angular resolution limits and non-indexed EBSD patterns on orientation data.
  • To identify and characterize different substructure types in deformed NaCl.

Main Methods:

  • EBSD orientation mapping was employed on hot-deformed and etched NaCl samples.

Related Experiment Videos

  • Analysis focused on deriving subgrain boundary misorientation distributions.
  • Scanning electron microscopy (SEM) was used for substructure identification.

    • Main Results:

    • Processing non-indexed EBSD patterns increased average misorientations in etched NaCl.
    • Noise significantly affected low-angle misorientations at step sizes smaller than the subgrain size.
    • Orientation gradient distributions were unaffected by noise, and average misorientation correlated with strain via a power law.

    Conclusions:

    • Data processing and step size critically influence EBSD-derived misorientation distributions.
    • Noise is a significant factor for small step sizes, while larger step sizes measure orientation gradients.
    • Three distinct substructures (equiaxed, long boundaries, core-mantle) were identified, providing insights into deformation mechanisms.