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Controlled-depth and cross-section preparation techniques for transmission electron microscopy subsurface studies in
A Garcia-Borquez1, W Kesternich
1Institut für Festkörperforschung, Forschungszentrum Jülich, Germany.
Microscopy Research and Technique
|June 15, 1993
Summary
This study details two methods for preparing thin film specimens from bulk materials for electron microscopy. These techniques are crucial for examining subsurface microstructural damage in electrically conducting materials like stainless steel.
Area of Science:
- Materials Science
- Metallurgy
- Microscopy
Background:
- Transmission electron microscopy (TEM) requires thin specimens for analysis.
- Studying subsurface damage in materials is critical for understanding material behavior.
- Electrically conducting materials present unique challenges in specimen preparation.
Purpose of the Study:
- To describe two complementary thin film specimen preparation techniques.
- To illustrate these methods using austenitic stainless steel.
- To analyze microstructural changes from ion irradiation damage below the surface.
Main Methods:
- Controlled-depth thin film preparation from bulk material.
- Cross-section thin film preparation for TEM.
- Application to austenitic stainless steel samples.
Main Results:
- Successful preparation of thin films for subsurface microstructural analysis.
- Complementary use of both techniques enabled detailed studies.
- Demonstration of ion irradiation damage in austenitic stainless steel.
Conclusions:
- The described techniques are effective for microstructural studies of subsurface damage.
- Both methods offer distinct advantages and have specific limitations.
- These preparations are vital for advanced materials characterization using TEM.