About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Honorary Symposium in Celebration of Prof. Michel Barsoum’s 70th Birthday
|
| Presentation Title |
Characterization of MAX Phases by Neutron Diffraction - Michel Barsoum's Time at LANSCE |
| Author(s) |
Sven C. Vogel, Nina J. Lane, Michel W. Barsoum |
| On-Site Speaker (Planned) |
Sven C. Vogel |
| Abstract Scope |
Initiated by a Wheatley scholarship at the Los Alamos Neutron Science Center, Michel Barsoum enabled collaborations between his group at Drexel University and the scattering team at LANSCE, which lead to about a dozen papers utilizing neutron diffraction to characterize MAX phases and study incipient kink bands as a novel deformation mechanism. In particular, the large d-spacing range available with time-of-flight neutron diffraction on the HIPPO instrument was used to measure anisotropic thermal motion parameters as a function of temperature for several MAX phases, which were then compared to predictions from DFT calculations with good success. Benchmarking the DFT calculations with experimental data in this way increased the trust in other predictions of thermo-physical parameters derived from those calculations. In this presentation we will review the results of these studies. |