Published April 7, 2010 | Version v1
Journal article Metadata-only

The effect of substitution of Nd by Pr on the magnetic properties of melt-spun Nd-Fe-B nanocomposite alloys

Creators

  • 1. Advanced Magnetics Group, Defence Metallurgical Research Laboratory, Kanchanbagh (PO), Hyderabad 500 058 (India)
  • 2. Materials Science Centre, Indian Institute of Technology Kharagpur, Kharagpur 721 302, West Bengal (India)

Description

The effect of partial substitution of Nd by Pr on the magnetic properties of exchange-coupled Fe3B/Nd2Fe14B nanocomposites with compositions (Nd1-yPry)4.5Fe77B18.5 (y = 0, 0.22, 0.45 and 0.66) has been investigated. Microstructural studies were carried out and correlated with the hard magnetic properties. The substitution of Nd by Pr improves iHc and (BH)max from 0.264 T and 73 kJ m-3 in the Pr-free alloy to 0.363 T and 106 kJ m-3, respectively, in the y = 0.45 alloy. Remanence magnetization decreases marginally on substitution. An increase in the Pr content beyond y = 0.45 leads to a deterioration of the hard magnetic properties, possibly due to a weakening of the exchange coupling interactions between the hard and soft magnetic phases.

Availability note (English)

Available from http://dx.doi.org/10.1088/0022-3727/43/13/135004

Additional details

Identifiers

DOI
10.1088/0022-3727/43/13/135004;
PII
S0022-3727(10)27968-8;

Publishing Information

Journal Title
Journal of Physics. D, Applied Physics
Journal Volume
43
Journal Issue
13
Journal Page Range
[6 p.]
ISSN
0022-3727
CODEN
JPAPBE

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42059392
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
BORON ALLOYS; COMPOSITE MATERIALS; IRON ALLOYS; MAGNETIC PROPERTIES; MAGNETIZATION; MICROSTRUCTURE; NANOSTRUCTURES; NEODYMIUM ALLOYS; PRASEODYMIUM ALLOYS
Descriptors DEC
ALLOYS; MATERIALS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; TRANSITION ELEMENT ALLOYS