On the Glass Transition Temperature and the Elastic Properties in Zr-Based Bulk Metallic Glasses

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Philosophical Magazine Letters

DOI:https://doi.org/10.1080/09500839.2011.616181· OSTI ID:1034004

Caron, A. ^[1]; Wunderlich, R. ^[2]; Louzguine, D. V. ^[3]; Egami, Takeshi ^[4]; Fecht, H. -J. ^[1]

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1. Tohoku University, Sendai, and University of Ulm, Germany
2. University of Ulm, Germany
3. Institute for Materials Research, Tohoku University, Sendai, Japan
4. ORNL

The temperature dependence of the elastic moduli was estimated from ultrasound time of flight measurements performed on bulk metallic glasses of composition Zr{sub 63-x}Cu{sub 24}Al{sub x} Ni{sub 10}Co{sub 3}. Using the corresponding values at the glass transition temperature, the local atomic strain was determined. The obtained values for the critical atomic strain calculated for 8 at% < x < 15 at% are close to the predicted universal criterion derived from a topological model, but may also reflect the difference in the chemical interaction that are not accounted by a topological approach.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1034004
• Journal Information: Philosophical Magazine Letters, Vol. 91, Issue 12; ISSN 0950-0839
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELASTICITY
GLASS
METALLIC GLASSES
STRAINS
TEMPERATURE DEPENDENCE
TRANSITION TEMPERATURE