Structural and magnetic properties of the CeCo5–CeZn5 solid solution and potential improvements upon iron substitution
Date
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Authors
Research Projects
Organizational Units
Journal Issue
Is Version Of
Versions
Series
Department
Abstract
In an effort to create high-performance permanent magnets with reduced critical rare earth content, we explored the CeCo5-xTx (T = transition metal or metalloid) family of compounds to investigate the effect of substitution on the material's magnetic properties. In our exploration of the CeCo5-xZnx system, we discovered a continuous solid solution at 900 degrees C between the CeCo5 and CeZn5 binary phases with ferromagnetism existing from the CeCo5 compound to the intermediate CeCo2.75Zn2.25 compound. Single crystal studies were also conducted revealing a relatively large anisotropy field of 11.5 T at 300 K for Ce0.96Ta0.04Co4.35Zn0.65. The addition of iron Ce0.79Ta0.07Co3.77Fe0.89Zn0.47 yielded further increases in Curie temperature and saturation magnetization to 800 K and 85.5 emu/g, respectively.