Hello all,

The /26th Congress and General Assembly of the International Union of
Crystallography Congress 2023/ will be held in Melbourne, 22-20 August 2023.

    Meeting website: https://iucr2023.org/
    Abstract Deadline: 21 February 2023
    Early bird registration deadline: 31 March 2023

The Commissions on Diffraction Microstructure Imaging and High Pressure
invite you to submit abstracts to the following session:/
/

    /A030 Multigrain Crystallography, Multicrystal Indexings, and
    Microstructures in High Pressure Experiments/

    This session is meant to catalyze discussions between the high
    pressure community and the newly registered IUCr Commission on
    Diffraction Microstructure Imaging, which aims at developing
    standards, procedures, trainings, etc on techniques such as
    multigrain crystallography, 3D-XRD, or High Energy X-ray
    Diffraction Microscopy (HEDM).

Please join us in Melbourne for exciting discussions!

Happy Holidays,

S. Merkel and Stella Chariton

/More information on the topic/*
*

The iUCR Commission on Diffraction Microstructure Imaging:
https://www.iucr.org/resources/commissions/diffraction-microstructure-imaging

The newly created discussion board for DMI:
https://github.com/dmi-3D/dmi-3D.github.io/discussions

The full session abstract

Over the last 50 years, high pressure research allowed for discoveries
in multiple fields of science, with applications ranging from earth
science and planetology, condensed matter physics, to the synthesis of
new materials. Samples in high pressure devices often appear in the form
of a multiphase and multicrystal assemblage within a micro-focused x-ray
beam. Such samples fall in between the ideal single-crystal and powder
and are inappropriate for conventional crystallographic
characterization. In addition, sample microstructures need to be
characterized and this requires mapping the orientations and properties
of hundreds of individual grains simultaneously.

Recently, new multigrain crystallography and multi-crystal indexing
techniques emerged. Both have now been successfully applied to
characterize the crystal structures of complex multigrain, multi-phase
samples at extreme conditions, as well as to track the hundreds of
microstructural elements of materials undergoing processes such as phase
transformation and plastic deformation. Despite significant advances,
however, these experiments and the processing of such data remain a
technical challenge.

Nevertheless, these methods offer great avenues for discoveries in high
pressure research. With new updated synchrotron sources, studies of
materials under multi-megabar pressures will expand and these materials
will require investigating multiple crystals simultaneously. In
parallel, multigrain crystallography allows, for instance, for a new
approach in the study of phase transformations, the induced
microstructures, and the associated mechanisms. Finally, the
high-pressure community has developed a great expertise at solving
crystal structures under complex environments, and this could cross-feed
into the multigrain crystallography community and other fields of science.

This microsymposium aims at bringing together those addressing
multicrystal indexings, characterization of new structures and
microstructural studies using multigrain crystallography under pressure.
We will highlight the latest technical and scientific discoveries and
how the methods could be developed and opened towards a broader community.

--
Sébastien Merkel
Université de Lille, France
http://merkel.texture.rocks/

Hello all,

The /26th Congress and General Assembly of the International Union of
Crystallography Congress 2023/ will be held in Melbourne, 22-20 August 2023.

    Meeting website: https://iucr2023.org/
    Abstract Deadline: 21 February 2023
    Early bird registration deadline: 31 March 2023

The Commissions on Diffraction Microstructure Imaging and High Pressure
invite you to submit abstracts to the following session:/
/

    /A030 Multigrain Crystallography, Multicrystal Indexings, and
    Microstructures in High Pressure Experiments/

    This session is meant to catalyze discussions between the high
    pressure community and the newly registered IUCr Commission on
    Diffraction Microstructure Imaging, which aims at developing
    standards, procedures, trainings, etc on techniques such as
    multigrain crystallography, 3D-XRD, or High Energy X-ray
    Diffraction Microscopy (HEDM).

Please join us in Melbourne for exciting discussions!

S. Merkel and Stella Chariton

/More information on the topic/*
*

The iUCR Commission on Diffraction Microstructure Imaging:
https://www.iucr.org/resources/commissions/diffraction-microstructure-imaging

The newly created discussion board for DMI:
https://github.com/dmi-3D/dmi-3D.github.io/discussions

The full session abstract

Over the last 50 years, high pressure research allowed for discoveries
in multiple fields of science, with applications ranging from earth
science and planetology, condensed matter physics, to the synthesis of
new materials. Samples in high pressure devices often appear in the form
of a multiphase and multicrystal assemblage within a micro-focused x-ray
beam. Such samples fall in between the ideal single-crystal and powder
and are inappropriate for conventional crystallographic
characterization. In addition, sample microstructures need to be
characterized and this requires mapping the orientations and properties
of hundreds of individual grains simultaneously.

Recently, new multigrain crystallography and multi-crystal indexing
techniques emerged. Both have now been successfully applied to
characterize the crystal structures of complex multigrain, multi-phase
samples at extreme conditions, as well as to track the hundreds of
microstructural elements of materials undergoing processes such as phase
transformation and plastic deformation. Despite significant advances,
however, these experiments and the processing of such data remain a
technical challenge.

Nevertheless, these methods offer great avenues for discoveries in high
pressure research. With new updated synchrotron sources, studies of
materials under multi-megabar pressures will expand and these materials
will require investigating multiple crystals simultaneously. In
parallel, multigrain crystallography allows, for instance, for a new
approach in the study of phase transformations, the induced
microstructures, and the associated mechanisms. Finally, the
high-pressure community has developed a great expertise at solving
crystal structures under complex environments, and this could cross-feed
into the multigrain crystallography community and other fields of science.

This microsymposium aims at bringing together those addressing
multicrystal indexings, characterization of new structures and
microstructural studies using multigrain crystallography under pressure.
We will highlight the latest technical and scientific discoveries and
how the methods could be developed and opened towards a broader community.

--
Sébastien Merkel
Université de Lille, France
http://merkel.texture.rocks/