Combined EBSD/EDS tomography in a dual-beam FIB/FEG-SEM
1Institute of Polymer Technology and Materials Engineering, Loughborough University, Loughborough LE11 3TU, UK. g.west@lboro.ac.uk
Journal of Microscopy
|March 3, 2009
Summary
This study introduces an automated 3D electron backscatter diffraction (EBSD)/energy dispersive spectroscopy (EDS) method for detailed material analysis. The technique accurately maps complex microstructures, precipitates, and phase connectivity, overcoming limitations of 2D analysis.
Area of Science:
- Materials Science
- Analytical Chemistry
- Microscopy
Background:
- Characterizing complex microstructures in materials like coatings and superalloys is crucial for understanding their properties.
- Traditional 2D analysis methods can lead to ambiguities in determining 3D structural features such as grain shapes and phase interconnectivity.
- Advanced microscopy techniques are needed to provide more comprehensive and accurate material characterization.
Purpose of the Study:
- To develop and present an automated method for collecting combined three-dimensional (3D) electron backscatter diffraction (EBSD) and energy dispersive spectroscopy (EDS) data.
- To demonstrate the application of this automated 3D EBSD/EDS technique for analyzing complex material systems.
- To highlight the advantages of this method in overcoming the limitations of 2D stereographic analysis for microstructure characterization.
Main Methods:
- An automated data collection workflow was established on a dual-beam focused ion beam (FIB)/field emission gun scanning electron microscope (FEG-SEM).
- Simple scripting files were utilized to automate the movement between EBSD pattern collection and FIB slicing positions.
- Simultaneous collection of EDS data with EBSD patterns was achieved, similar to combined 2D EBSD/EDS, but enabling 3D reconstruction.
Main Results:
- The automated 3D EBSD/EDS method was successfully applied to analyze the interdiffusion zone between a coating and a substrate.
- The technique was also validated on a complex multi-phase coating on a nickel-based superalloy sample.
- Detailed 3D information regarding complex grain shapes, precipitate locations, and phase interconnectivity was obtained.
Conclusions:
- The developed automated 3D EBSD/EDS technique provides a powerful tool for high-resolution microstructural analysis.
- This method effectively resolves ambiguities inherent in 2D stereographic analysis, offering more accurate structural insights.
- The automation streamlines data acquisition, making advanced 3D materials characterization more accessible and efficient.
More Related Videos
08:36Multi-Tracer Studies of Brain Oxygen and Glucose Metabolism Using a Time-of-Flight Positron Emission Tomography-Computed Tomography Scanner
Published on: June 7, 2024
08:41Novel In Vivo Micro-Computed Tomography Imaging Techniques for Assessing the Progression of Non-Alcoholic Fatty Liver Disease
Published on: March 24, 2023
Related Concept Videos
01:25Ultrasound II: Endoscopic Ultrasound and FibroScan
Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
Endoscopic Ultrasound (EUS):
01:25Imaging Studies II: Positron Emission Tomography and Scintigraphy
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
01:29Positron Emission Tomography
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
01:10Computed Tomography
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
01:27Imaging Studies III: Computed Tomography
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...