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, cilt.27, ss.2295-2298, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 27 Konu: 10
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1007/s10948-014-2582-4
  • Dergi Adı: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
  • Sayfa Sayıları: ss.2295-2298

Özet

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.