Compression of bulk metallic glass Zr[subscript 57]Cu[subscript 15.4]Ni[subscript 12.6]Al[subscript 10]Nb[subscript 5] to 122 GPa

Journal Article · Fri Oct 28 04:00:00 EDT 2011 · High Pressure Res.

DOI:https://doi.org/10.1080/08957959.2011.576675· OSTI ID:1021794

Stemshorn, Andrew K; Vohra, Yogesh K ^[1]

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1. UAB

Ultra high pressure X-ray diffraction studies have been carried out on group IV transition metals-based bulk metallic glass (BMG) Zr{sub 57}Cu{sub 15.4}Ni{sub 12.6}Al{sub 10}Nb{sub 5} to a pressure of 122 GPa at ambient temperature in a diamond anvil cell. Image plate X-ray diffraction studies under high pressure were carried out at a synchrotron source and the two BMG diffraction bands can be followed to the highest pressure using an internal copper pressure standard. Our experiments show that the BMG is stable to compression as high as 40% and thermal activation is needed to nucleate nanostructures/crystallization under extreme conditions. The fit to the Birch-Murnaghan equation of state gives bulk modulus (B{sub 0}) = 116 GPa and its pressure derivative B' = 3.04. The measured differential radial distribution function shows gradual compression of the shell structures in the BMG to extreme compressions.

• Research Organization: Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
• Sponsoring Organization: NSFOTHER U.S. GOVERNMENT
• OSTI ID: 1021794
• Journal Information: High Pressure Res., Journal Name: High Pressure Res. Journal Issue: (2) ; 06, 2011 Vol. 31; ISSN 0895-7959; ISSN HPRSEL
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AMBIENT TEMPERATURE
COMPRESSION
COPPER
DIAMONDS
DIFFRACTION
GLASS
PLATES
SPATIAL DISTRIBUTION
SYNCHROTRONS
X-RAY DIFFRACTION