Applied magnetic field synthesis and processing of iron nitride magnetic materials

US9994949B2 · kind B2 · utility

Assignees

• Regents of the University of Minnesota · US
• UT-BATTELLE, LLC · US

Inventors

• Michael P. Brady · Oak Ridge, US
• Orlando Rios · Knoxville, US
• Yanfeng Jiang · Minneapolis, US
• Gerard M. Ludtka · Oak Ridge, US
• Craig A. Bridges · Oak Ridge, US
• Jian-Ping Wang · Shoreview, US
• Xiaowei Zhang · Union, US
• Lawrence F. Allard · Knoxville, US
• Edgar Lara-Curzio · Lenoir City, US

Key dates

• Filing date: Jun 29, 2015
• Grant date: Jun 12, 2018
• Expiry date: Jun 12, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/133
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe16N2 phase domain. The applied magnetic field may have a strength of at least about 0.2 Tesla (T).