Pressure-induced amorphization of ZrTiCuNiBe bulk glass-forming alloy

Citation
Wh. Wang et al., Pressure-induced amorphization of ZrTiCuNiBe bulk glass-forming alloy, APPL PHYS L, 79(8), 2001, pp. 1106-1108
Citations number
19
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
79
Issue
8
Year of publication
2001
Pages
1106 - 1108
Database
ISI
SICI code
0003-6951(20010820)79:8<1106:PAOZBG>2.0.ZU;2-K
Abstract
Zr41Ti14Cu12.5Ni10Be22.5 alloy can be cooled under high pressure (HP) to a bulky glassy state at very low cooling rates. The structure and properties of the bulk metallic glass (BMG) are investigated by differential scanning calorimetry, x-ray diffraction, ultrasonic study, and density measurements. The effects of pressure on the glass formation are discussed from the poin ts of view of nucleation kinetics and thermodynamics. The BMG obtained unde r HP is in a high-density amorphous state that is different in structure an d property from low-density amorphous phase quenched in water. Solidificati on under HP is a promising way not only for synthesizing BMGs with more den sely packed structures and different properties, but also for understanding the glass formation mechanism. (C) 2001 American Institute of Physics.