Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29925
Title: Dual magnetic phases in Nd-based bulk metallic glass
Authors: Hu, Y
Chan, KC 
Liu, L
Yang, YZ
Keywords: Bulk metallic glass
Exchange coupling effect
Magnetic materials
Microstructure
Nanocrystal
Issue Date: 2008
Publisher: Elsevier Science Bv
Source: Materials letters, 2008, v. 62, no. 24, p. 4012-4014 How to cite?
Journal: Materials Letters 
Abstract: Numerous nanocrystals dispersed homogenously in an amorphous matrix were observed in the die-cast cylindrical Nd55Fe28Al9Ni8 bulk metallic glass. Most of the nanocrystals are less than 5 nm in size. At room temperature, only one magnetically hard phase was observed. But below room temperature, another magnetically hard phase was also detected. The appearance of the phases was associated with the different exchange coupling effect of the nanocrystalline grains and the amorphous matrix, and the coercivity of the alloy was related to the size of the nanocrystals. It was shown that nanocrytals with a size larger than 1.3 nm might contribute to a larger coercivity of the alloy.
URI: http://hdl.handle.net/10397/29925
DOI: 10.1016/j.matlet.2008.05.069
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