Journal
INTERMETALLICS
Volume 16, Issue 4, Pages 584-586Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2007.12.016
Keywords
glasses, metallic; alloy design
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New Hf-based bulk metallic glasses (BMGs) have been discovered in the Hf-Cu-Ni-Al quaternary system. These interesting BMGs (i) are based on a refractory element and have relatively high glass transition and crystallization temperatures, (ii) exhibit excellent glass-forming ability with a critical diameter in the 8-10 mm range for copper mold casting, and (iii) have relatively high mass density (> similar to 11 g/cc). The combination of these properties is important for the BMG matrix in composites for kinetic energy penetrator applications. (C) 2008 Elsevier Ltd. All rights reserved.
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