collaborators

7 papers

cond-mat.dis-nn2024

Relationship between the shear modulus and volume relaxation in high-entropy metallic glasses: experiment and physical origin

R. S. Khmyrov, A. S. Makarov, J. C. Qiao +2

We performed parallel measurements of the high-frequency shear modulus and relative volume for high-entropy TiZrHfBeCu and TiZr…

cond-mat.dis-nn2024

Fast relaxation in metallic glasses studied by measurements of the internal friction at high frequencies

G. V. Afonin, J. C. Qiao, A. S. Makarov +2

We performed high-frequency (0.4 to 1.7 MHz) measurements of the internal friction (IF) on 14 bulk metallic glasses (MGs). It is found that 12 of these MGs display relaxation IF pe…

cond-mat.dis-nn2024

High entropy metallic glasses, what does it mean?

G. V. Afonin, J. C. Qiao, A. S. Makarov +4

We performed calorimetric measurements on 30 bulk metallic glasses differing with their mixing entropies DSmix. On this basis, the excess entropies DS and excess enthalpies DH of g…

cond-mat.dis-nn2023

Effect of the entropy on the shear viscosity of metallic glasses near the glass transition

A. S. Makarov, J. B. Cui, J. C. Qiao +3

We measured the shear viscosity of 14 metallic glasses differing with their mixing entropy . It is found that the viscosity at the glass transition temperature sign…

cond-mat.dis-nn2023

Dimensionless parameter of structural ordering and excess entropy of metallic and tellurite glasses

A. S. Makarov, G. V. Afonin, R. A. Konchakov +4

Using a notion on the excess entropy of glass with respect to the counterpart crystal, we introduce a simple dimensionless order parameter , which changes from

cond-mat.dis-nn2023

Critical behavior of the fluctuation heat capacity near the glass transition of metallic glasses

R. A. Konchakov, A. S. Makarov, G. V. Afonin +4

The high-frequency shear modulus of five Zr-, Pd-, Cu-based conventional and two high-entropy bulk metallic glasses was measured in a wide temperature range up to the beginning of…