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Content archived on 2024-05-29

Advancing orientation and strain determination with high spatial resolution


The project deals with methods of determination of local lattice orientations and lattice distortions (strain) with high spatial resolution. It is based in part on research tools which have been developed in the framework of the initial Marie Curie Fellow ship.

The first purpose of the project is the advancement of the orientation mapping system using transmission electron microscopy (TEM) and Kikuchi diffraction patterns, and the implementation of the system at the host institute. The system will be expanded by the capability to make maps based on microdiffraction spot patterns. Prototypes of such units already exist. However, the new one will allow for a choice between the two modes, it will use different hardware, and a part of the software will be written anew. The other part of the project - local strain determination - has two objectives. The first one is to move forwards the application of a computer program (developed during the initial Marie Curie Fellowship) for strain determination from multiple TEM convergent beam electron diffraction patterns. The second goal will be to create a computer package for calculation strain tensor components from the geometry of Kossel patterns.

The package will be linked to a system developed at the host of the initial fellowship; the system generates X-ray Kossel patterns in a scanning microscope equipped with a tensile device. With its focus on high-resolution techniques, the project is in line with the current interest in nanoscale research. It will also contribute to automation and computerization of research methods. The timing of the project is linked to recent acquisitions of a new microscope and CCD cameras at the host institute. The implementation of the new characterization techniques will expand the institute's research basis. It is also believed that carrying out the project will enable the applicant to gain momentum for confronting the challenges of research in Poland.

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Reymonta 25

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