Published March 2009 | Version v1
Journal article Metadata-only

Structure and magnetic entropy change of suck-cast Gd60Co26Al6Ge8 alloy

Creators

  • 1. Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
  • 2. Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148 (United States)

Description

The Gd60Co26Al6Ge8 alloy has been prepared by the copper-mold suck-casting and its phase component has been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). It is shown that this alloy consists of primary crystalline Gd5Ge3 phase and amorphous matrix. The glass transition temperature (Tg) and crystallization temperatures (Tx) occur at 292 and 320 deg. C, respectively. The maximal magnetic entropy change (ΔSM) under 0-5 T field is about 7.6 J (kg-1 K-1) at 155 K and the refrigeration capacity (RC) is about 768 J kg-1, which makes Gd60Co26Al6Ge8 bulk metallic glass matrix composite a promising candidate for magnetic refrigerant

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jmmm.2008.09.025

Additional details

Identifiers

DOI
10.1016/j.jmmm.2008.09.025;
PII
S0304-8853(08)00951-7;

Publishing Information

Journal Title
Journal of Magnetism and Magnetic Materials
Journal Volume
321
Journal Issue
6
Journal Page Range
p. 578-580
ISSN
0304-8853
CODEN
JMMMDC

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40056158
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ALUMINIUM ALLOYS; COBALT ALLOYS; COPPER; CRYSTALLIZATION; ENTROPY; GADOLINIUM ALLOYS; METALLIC GLASSES; SCANNING ELECTRON MICROSCOPY; SPECTROSCOPY; TRANSITION TEMPERATURE; X-RAY DIFFRACTION
Descriptors DEC
ALLOYS; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; ELEMENTS; METALS; MICROSCOPY; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.