| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
Processing Materials for Properties
|
| Presentation Title |
Anisotropic Crystallization of Uniaxially Pressed Mixed Rare Earth-Iron-Boron Alloys |
| Author(s) |
Nathaniel Oster, Iver E Anderson, Wei Tang, Yaqiao Wu, Kevin Dennis, Matthew Kramer, R. W. McCallum |
| On-Site Speaker (Planned) |
Nathaniel Oster |
| Abstract Scope |
Anisotropic nanocrystalline mixed rare earth (MRE) magnet alloy particulate for use in polymer-bonded magnets shows promise for use in high torque electric motors and other applications which require high energy density magnets capable of performing at elevated temperatures. A novel method of forming particulate with the desired microstructure from the amorphous state is presented. Due to processing differences between the proposed method and traditional methods, this technique shows promise for reduction in processing costs. In this study, amorphous MRE-iron-boron alloy particulate was uniaxially pressed during crystallization to induce texture. Texture can be formed because anisotropy in the crystal cell provides preferred growth directions under non-hydrostatic stress. Microstructure and texture are observed through transmission electron microscopy, scanning electron microscopy, and x-ray diffraction. Results will be presented. Supported by DOE-EERE-FCVT Office through Ames Lab contract DE-AC02-07CH11358 |
| Proceedings Inclusion? |
Definite: A CD-only volume |