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

Imaging dislocations in ice.

I Baker1

  • 1Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA.

Microscopy Research and Technique
|August 26, 2003
PubMed
Summary
This summary is machine-generated.

Synchrotron X-ray topography reveals ice crystal deformation mechanisms. Dynamic studies show basal slip by screw and edge dislocations, with generation at grain boundaries in polycrystals.

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

Ischaemic stroke caused by Group B Streptococcus associated meningoencephalitis in young, immunocompetent adults - a case series and systematic review of literature.

Acute medicine·2022
Same author

Magnetic Nanoparticles with High Specific Absorption Rate at Low Alternating Magnetic Field.

Nano LIFE·2016
Same author

Making EBSD on water ice routine.

Journal of microscopy·2015
Same author

Synthesis and heating effect of iron/iron oxide composite and iron oxide nanoparticles.

Proceedings of SPIE--the International Society for Optical Engineering·2014
Same author

Intratumoral Iron Oxide Nanoparticle Hyperthermia and Radiation Cancer Treatment.

Proceedings of SPIE--the International Society for Optical Engineering·2014
Same author

A comparison between the OPCS and coroner's data on suicide and undetermined deaths in an English Health District.

International journal of psychiatry in clinical practice·2014
Same journal

Deep Learning Based Framework for Detection and Classification of Leukemia Using Microscopic Images.

Microscopy research and technique·2026
Same journal

Externally Controlled In Situ SEM: Multi-Rate Scanning With Signal Regulation and Spatiotemporal Fusion.

Microscopy research and technique·2026
Same journal

In Situ TEM Observation of Phase Transformation Nucleation at the Near-Surface of Synthetic Aragonite.

Microscopy research and technique·2026
Same journal

Morpho-Anatomical and HPTLC Investigations of Lysimachia nummularia L. (Primulaceae) Grown in Switzerland.

Microscopy research and technique·2026
Same journal

Macroscopic, Histological and Ultrastructural Features of the Tongue of the Anatolian Wild Boar (Sus scrofa libycus).

Microscopy research and technique·2026
Same journal

Ultrastructural Insights Into the Reproductive Anatomy and Eggs of Cotton Pink Bollworm, Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae).

Microscopy research and technique·2026
See all related articles

Area of Science:

  • Materials Science
  • Solid State Physics
  • Crystallography

Background:

  • Dislocations govern ice crystal mechanical properties.
  • Previous studies used etch pitting, TEM, and conventional X-ray topography (XT).
  • Conventional XT images dislocations that have already recovered.

Purpose of the Study:

  • To investigate dislocation dynamics in ice using advanced X-ray topography.
  • To elucidate deformation mechanisms in single crystal and polycrystalline ice.
  • To measure dislocation velocities and characterize dislocation generation.

Main Methods:

  • High-intensity synchrotron X-ray topography (SXRT) for dynamic in situ observations.
  • Comparison with conventional X-ray topography, transmission electron microscopy, and etch pitting-replication.

Related Experiment Videos

  • Deformation experiments on ice single crystals and polycrystals.

    • Main Results:

    • SXRT revealed slip primarily occurs on the basal plane via screw and 60° (1/3)[1120] dislocations in single crystals.
    • Non-basal slip by edge dislocations was also observed.
    • Dislocation multiplication sources (e.g., Frank-Read) were demonstrated, and velocities measured.
    • In polycrystals, dislocation generation initiated at grain boundaries.
    • Faulted dislocation loops were predominantly interstitial in both crystal types.

    Conclusions:

    • Synchrotron X-ray topography is the premier technique for studying dynamic dislocation behavior in ice.
    • Understanding dislocation mechanisms is crucial for predicting ice's mechanical response.
    • Grain boundaries act as critical sites for dislocation generation in polycrystalline ice.