Published August 2006 | Version v1
Journal article Metadata-only

High hard magnetic properties and cellular structure of nanocomposite magnet Nd4.5Fe73.8B18.5Cr0.5Co1.5Nb1Cu0.2

Creators

  • 1. Center for Materials Science, University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi (Viet Nam)
  • 2. Institute of Materials Science, Vietnamese Academy of Science and Technology (Viet Nam)

Description

The formation of special nanostructure, cellular structure, in Nd4.5Fe73.8B18.5Cr0.5Co1.5Nb1Cu0.2 nanocomposite magnet has been observed by means of SEM for the first time. Ultrafine structure of cellules with thickness of 20-25 nm and length in range of 200-300 nm leads to high shape anisotropy of the materials. Therefore, high hard magnetic properties were obtained with (BH)max up to 17.3 MG Oe in ribbons with very high remanence of 13.5 kG. The role of Cr and Co in the formation and refinement of cellular structure is proposed. Effect of heat treatment on hard magnetic properties is discussed in detail

Additional details

Identifiers

DOI
10.1016/j.jmmm.2006.01.058;
PII
S0304-8853(06)00073-4;

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
303
Journal Issue
2
Journal Page Range
p. e419-e422
ISSN
0304-8853
CODEN
JMMMDC

Conference

Title
6. international symposium on physics of magnetic materials
Dates
13-16 Sep 2005
Place
Singapore (Singapore)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37109737
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; BORON ALLOYS; CHROMIUM ALLOYS; COBALT ALLOYS; COPPER ALLOYS; CRYSTALS; HEAT TREATMENTS; IRON ALLOYS; MAGNETIC PROPERTIES; NANOSTRUCTURES; NEODYMIUM ALLOYS; NIOBIUM ALLOYS; PERMANENT MAGNETS; SCANNING ELECTRON MICROSCOPY
Descriptors DEC
ALLOYS; ELECTRON MICROSCOPY; EQUIPMENT; MAGNETS; MICROSCOPY; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.