Low-temperature acoustic properties and quasiharmonic analysis for Cu-based bulk metallic glasses

2007 ◽  
Vol 76 (10) ◽  
Author(s):  
R. Tarumi ◽  
M. Hirao ◽  
T. Ichitsubo ◽  
E. Matsubara ◽  
J. Saida ◽  
...  
Keyword(s):  
Low Temperature ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses ◽  
Acoustic Properties

Low-temperature acoustic properties of metallic glasses

1993 ◽  
Vol 47 (9) ◽  
pp. 4922-4936 ◽  
Author(s):  
S. N. Coppersmith ◽  
Brage Golding
Keyword(s):  
Low Temperature ◽  
Metallic Glasses ◽  
Acoustic Properties

scholarly journals Low Temperature Mechanical Properties of Bulk Metallic Glasses

2000 ◽  
Vol 41 (11) ◽  
pp. 1443-1447 ◽  
Author(s):  
Shin Takeuchi ◽  
Tomohiro Kakegawa ◽  
Tatsuo Hashimoto ◽  
An-Pang Tsai ◽  
Akihisa Inoue
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses

scholarly journals Low-Temperature Elastic Properties of Zr-Based Bulk Metallic Glasses

2016 ◽  
Vol 37 (5) ◽  
pp. 637-647
Author(s):  
S. O. Bakai ◽  
◽  
O. S. Bulatov ◽  
V. F. Dolzhenko ◽  
V. S. Klochko ◽  
...  
Keyword(s):  
Low Temperature ◽  
Elastic Properties ◽  
Metallic Glasses ◽  
Bulk Metallic Glasses

scholarly journals Influence of Dielectric Screenings on Phonon Frequencies and Acoustic Properties of Pd-Based Bulk Metallic Glasses

2020 ◽  
Keyword(s):  
Metallic Glasses ◽  
Structure Factor ◽  
Phonon Dispersion ◽  
Bulk Metallic Glasses ◽  
Dispersion Curves ◽  
Acoustic Properties ◽  
Static Structure Factor ◽  
Static Structure ◽  
Phonon Dispersion Curves ◽  
Sound Velocities

The phonon dispersion curves for bulk metallic glasses (BMGs) Pd40Ni10Cu30P20 and Pd64Ni16P20 are computed for the longitudinal and transverse phonon frequencies using the simple model given by Bhatia and Singh. Different dielectric screening functions are employed for the longitudinal mode. We obtain the values of the force constants β and δ calculated from the elastic constants of the material of the respective BMGs for computing the dispersion curves. The computed phonon dispersion curves show appropriate behaviour for both the longitudinal and transverse modes. The transverse sound velocity and the longitudinal sound velocities with various dielectric screenings are calculated in the long wavelength region from the computed dispersion curves for both the BMGs. The first peak position of the static structure factor is predicted from the dispersion curves. The values of sound velocities and the first peak of the static structure factor estimated from the computed dispersion curves show excellent agreement with the experimental values reported in literature for the BMGs under consideration and the results may be used for correlating other properties of the BMGs.

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