| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Radiation Effects in Metals and Ceramics
|
| Presentation Title |
H-50: Ion-irradiation-induced Structural Disorder and Thermal Conductivity Changes of Intermetallic Compounds |
| Author(s) |
Shradha Agarwal, Andy Nelson, Steven Zinkle |
| On-Site Speaker (Planned) |
Shradha Agarwal |
| Abstract Scope |
The ordered intermetallic compounds are potential candidates for high-temperature components for both fission and fusion reactors. The irradiation-induced amorphization and structural disorder is a common phenomenon known for this class of materials. The knowledge of experimentally measured critical dose and temperature for amorphization is different for each type of intermetallic compound and is vital for their application. Most importantly, how this disorder and amorphization affects the thermal conductivity of this material is crucial, especially with regard to their application in fuel systems. Under this context, five different intermetallics compounds, namely FeAl, TiAl, NiAl, Ni3Al, and Fe3Al were damaged using 21 MeV Au ions at 1 dpa dose. The irradiations were conducted at very low temperature ~ 80 K. The samples were then investigated using thermal conductivity microscope to evaluate irradiation induced changes in the property. The structural disorder and amorphization were examined using transmission electron microscopy and X-ray diffraction.
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| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |