About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
In-Situ and Ex-Situ Observations of Phase Selection in Magnet Alloys |
Author(s) |
Matthew J. Kramer, A.C. Chaung, Iver Anderson, Pratik K. Ray, E.M.H. White, T. Prost, E. Rinko |
On-Site Speaker (Planned) |
Matthew J. Kramer |
Abstract Scope |
Magnetic alloys possess finely tuned nanostructures which balances phases selection, their grain size and orientation to optimize coercivity, magnetization and remanence. Determining how various processing parameters can effect an alloys’ phase selection and microstructure is paramount in order to optimize alloy design and its processing. Processing parameters are very sensitive to time-temperature conditions, so are not always reliably investigated by quenching and post-mortem analysis. High-energy synchrotron X-rays provide high fidelity time resolved (sub-second) small and wide-angle diffraction at temperature (RT – 1250C) to track the phase evolution at both isochronal and isothermal conditions provides unique insight into these temporal sensitive processes. We have analyzed Rare Earth (RE) and non- RE based magnet alloys processing using in situ methods. In particular, will relate the in situ characterization of the spinodal formation in the RE-free alnico alloys whose optimized magnetic properties are dependent of the appropriate time/temperature of the thermal magnetic annealing. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |