Cooling-rate dependence of the density of Pd40Ni10Cu30P20 bulk metallic glass - art. no. 172201

Authors
Hu, X Ng, SC Feng, YP Li, Y
Citation
X. Hu et al., Cooling-rate dependence of the density of Pd40Ni10Cu30P20 bulk metallic glass - art. no. 172201, PHYS REV B, 6417(17), 2001, pp. 2201
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6417
Issue
17
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011101)6417:17<2201:CDOTDO>2.0.ZU;2-U
Abstract
The effect of cooling rate on the density of the Pd40Ni10Cu30P20 bulk metal lic glass (BMG) have been investigated by over the cooling rate range from 0.63 to 500 K/s. The cooling rate dependence of density, microhardness and thermal properties of the BMG is determined. Based on the thermal-expansion coefficients measured in the amorphous and supercooled liquid states, resp ectively, it is deduced that the density of the BMG in the "ideal" state ap proaches that of its crystalline counterpart. The effect of cooling rate on the density is discussed in terms of structural relaxation.