Aim of the project:
➢ To identify the phases present in a meteorite specimen and map the corresponding phase
morphology from the electron backscatter diffraction patterns (EBSDs) obtained from a
scanned area
➢ To determine the phases present in the specimen of iron-nickel (Fe-Ni) meteor.
➢ Compare and contrast pole figures collected.
Experimental Procedures:
➢ You will be given 3 specimens (tentative):
▪ One meteorite specimen
▪ Polycrystalline Copper
▪ Single Crystal Silicon
➢ For all 3 specimens, find out the number of phases present in each specimen and identify
them.
➢ Steps to determine the identity of an unknown phase:
❖ Collect a EBSP from a phase and detect the bands
*You must demonstrate that each phase is properly identified by overlaying the indexed
solution over the original EBSP and show that the detected Kikuchi bands and the
simulations are well matched.
➢ For the meteorite specimen, create a phase map and estimate the volume fraction of each
phase in the structure.
➢ Compare and contrast the pole figures for copper and silicon.
➢ Discuss data collected with respect to their orientation maps.
Note:
➢ Each individual is expected to obtain your own diffraction images from all phases in the 3
specimens.
➢ The EBSD scan can be done together.
MSE 323 Materials Characterization Laboratory Spring 2020
Report :
Please refer to document on Blackboard Learn regarding
• Style of report; and
• Contents expected in the report (grading guidelines)
You may find the following references helpful:
• Chapter “ Electron Backscatter Diffraction Aluminum Alloys” (Chapter 10) from DS
MacKenzie and GE Totten, Analytical Characterization of Aluminum, Steel, and
Superalloys, CRC Press, Boca Raton, FL, 2006. (on e-learning)
• Electron Backscatter Diffraction in Materials Science 2, Ed. by Schwartz, Kumar,
Adams, and Field, Kluwer Academic, New York, 2009.
• http://www.alaska.net/~meteor/mineral.htm
• http://www.classicgems.net/gem_kamacite.htm
• http://www.uwgb.edu/dutchs/Petrology/Kamacite-Taen…
I did not download all the files,
You also need to watch the YouTube videos below
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