Effect of Mn on the magnetic properties of Fe3B/Nd2Fe14B nanocomposites
- 1. Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302 (India)
- 2. Defence Metallurgical Research Laboratory, Hyderabad 500 058 (India)
Description
The magnetic properties of Nd4.5Fe77-xMnxB18.5 (x=0, 1 and 2) nanocomposites prepared by the crystallization of amorphous precursors were investigated. Addition of Mn is found to decrease the crystallization temperature of the amorphous ribbons. The intrinsic coercivity iHc and maximum energy product (BH)max increase from 2.6 kOe and 9.1 MGOe for x=0 to 3.1 kOe and 10.3 MGOe for x=1, respectively, and the remanence ratio Mr/Ms increases from 0.70 to 0.72. The effect of Mn on Curie temperature TC and the thermal stability of Mr and iHc were also studied. 57Fe Moessbauer spectra have been recorded for x=0, 1 and 2 ribbons at room temperature and site preference of the Mn atoms in Fe3B and Nd2Fe14B phases is discussed using the Moessbauer spectroscopy
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2008.01.029Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2008.01.029;
- PII
- S0304-8853(08)00036-X;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 320
- Journal Issue
- 9
- Journal Page Range
- p. 1645-1650
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39065727
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BORON ALLOYS; COERCIVE FORCE; COMPOSITE MATERIALS; CRYSTALLIZATION; CURIE POINT; IRON 57; IRON ALLOYS; MAGNETIC PROPERTIES; MOESSBAUER EFFECT; NANOSTRUCTURES; NEODYMIUM ALLOYS; STABILITY; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ALLOYS; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOTOPES; MATERIALS; NUCLEI; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; STABLE ISOTOPES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION TEMPERATURE
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.