Improvement of Coercivity and Curie Temperature of Sintered Nd-Fe-B Permanent Magnets by Addition of Cu and Ni


Basoglu M., Yanmaz E.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, vol.27, no.10, pp.2295-2298, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 10
  • Publication Date: 2014
  • Doi Number: 10.1007/s10948-014-2582-4
  • Title of Journal : JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
  • Page Numbers: pp.2295-2298

Abstract

Sintered Nd-Fe-B magnets are some of the strongest magnetic materials showing magnetic properties. Blending addition is frequently performed in order to improve the magnetic properties of these materials. In this work, high-melting point Ni and low-melting point Cu were added to Nd15Fe77B8 ingot by blending. As a result of structural analysis, it was observed that 0.2 wt% Cu + Ni addition improved the structure of the material; on the other hand, excessive addition resulted in porosity. It was also observed that 0.2 wt% addition improved the magnetic properties, and Curie temperature increased with increasing addition ratio.