Topic
Electron backscatter diffraction
About: Electron backscatter diffraction is a research topic. Over the lifetime, 15184 publications have been published within this topic receiving 317847 citations. The topic is also known as: EBSD.
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TL;DR: In this article, the microstructures of sheared lherzolite xenoliths from South African kimberlites were investigated using new microstructural analysis techniques and new rheological data.
Abstract: [1] The microstructures of sheared lherzolite xenoliths from South African kimberlites are investigated using new microstructural analysis techniques and new rheological data. By applying electron backscatter diffraction (EBSD) methods and the M-index technique for quantifying the strength of lattice preferred orientation (LPO), it is demonstrated that olivine and orthopyroxene, after an initial stage of dynamic recrystallization, deformed by different mechanisms: olivine deformed by dislocation creep, while orthopyroxene deformed by a grain-size sensitive mechanism that randomized the preexisting LPO. New rheological data, which incorporate the effects of pressure on deformation, are applied to these xenoliths. The effects of pressure are shown to dramatically reduce the inferred strain rates of these xenoliths in comparison to previous estimates. The contrasting microstructural features of olivine and orthopyroxene are analyzed using the Avrami theory of recrystallization, coupled with microstructural observations and experimental data. This analysis suggests that (1) the difference in the recrystallized grain-size and (2) the difference in the completeness of recrystallization, can be largely explained by the contrast in grain boundary mobility between olivine and orthopyroxene.
76 citations
TL;DR: In this paper, defect and the crystallographic texture properties of pure Mo bulk samples were investigated in detail with various process parameters, such as laser power, scan speed, and layer thickness, and the effects of each parameter on the microstructure were evaluated individually.
76 citations
TL;DR: In this article, the effects of composition and cooling rate on the microstructures of alloys in the pseudo-binary PbTe-Sb 2 Te 3 system were investigated as a first step towards the design of nanostructured materials with enhanced thermoelectric properties.
76 citations
TL;DR: In this paper, an electron backscatter diffraction at low acceleration voltage is used to obtain improved spatial resolution for detailed nanoscale microstructure investigations, and the authors show that an optimised working distance and dedicated sample preparation are essential to obtain an improved spatio-temporal resolution.
Abstract: By using a low SEM accelerating voltage in the range of 5–7·5 kV with an electron backscatter diffraction system, the interaction volume of electrons with matter is markedly decreased, and the spatial resolution is improved. The authors present measurements which prove this relationship. Electron backscatter diffraction at low acceleration voltage, however, is not a straightforward technique with the current equipment and a standard set-up. The authors show that an optimised working distance and dedicated sample preparation are essential to obtain improved spatial resolution for detailed nanoscale microstructure investigations.
76 citations
TL;DR: The dynamic recrystallization (DRX) mechanisms of Inconel 740 superalloy were studied by electron backscatter diffraction (EBSD) analysis of the microstructures obtained under different deformation conditions.
76 citations