Magnetic article and method for producing a magnetic article

US8518194B2 · kind B2 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventors

• Matthias Katter · Erlangen, DE
• Joachim Gerster · Alzenau, DE
• Ottmar Roth · Ortenburg, DE

Key dates

• Filing date: Sep 30, 2009
• Grant date: Aug 27, 2013
• Expiry date: Jan 22, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F2998/00
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A magnetic article comprises, in total, elements in amounts capable of providing at least one (La1-aMa)(Fe1-b-cTbYc)13-dXe phase and less than 0.5 Vol % impurities, wherein 0≦a≦0.9, 0≦b≦0.2, 0.05≦c≦0.2, −1≦d≦+1, 0≦e≦3, M is one or more of the elements Ce, Pr and Nd, T is one or more of the elements Co, Ni, Mn and Cr, Y is one or more of the elements Si, Al, As, Ga, Ge, Sn and Sb and X is one or more of the elements H, B, C, N, Li and Be. The magnetic article comprises a permanent magnet.