|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Powder Materials for Energy Applications
||Investigation of the Powder Processing of Near-final Shape AlNiCo Magnets for Eventual Use in Electric Drive Motors
||Emily Rinko, Iver Anderson, Emma White, Wei Tang, Lin Zhou, Matthew Kramer
|On-Site Speaker (Planned)
Although rare earth elements (REE) are highly localized and vulnerable to price instability, REE-based permanent magnets (PM) are frequently the magnet of choice for interior PM motors found in many electric vehicles. Alnico, a REE-free alternative that can operate at higher temperatures compared to REE-PMs, can be fabricated via advanced powder processing techniques to yield textured, large grained, near-final shape alnico PMs. However, recent findings indicate established processing could be improved for unique alnico alloys (designed to improve magnetic properties) due to significant deviations observed from theoretical grain growth kinetics and grain rotation during sintering and solid state grain alignment (SSGA) respectively. This study offers a careful evaluation of the processing of alnico PMs and methods to improve processing. These methods will be discussed along with their impacts on sintering, SSGA, and magnetic properties. Work supported by USDOE-OTT-TCF program with funds from EERE-VTO through Ames Lab contract no. DE-AC02-07CH11358.
||Planned: Supplemental Proceedings volume