Boson heat capacity peak and its evolution with the enthalpy state and defect concentration in a high entropy bulk metallic glass

2022 ◽  
Vol 141 ◽  
pp. 107422
Author(s):  
Andrei Makarov ◽  
Gennadii Afonin ◽  
Konstantin Zakharov ◽  
Alexander Vasiliev ◽  
Jichao Qiao ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Defect Concentration ◽  
High Entropy

Thermodynamics of The Pd43Ni10Cu27P20 Bulk Metallic Glass Forming Alloy

2003 ◽  
Vol 806 ◽  
Author(s):  
Masahiro Kuno ◽  
Ludi A. Shadowspeaker ◽  
Jan Schroers ◽  
Ralf Busch
Keyword(s):  
Heat Capacity ◽  
Free Energy ◽  
Metallic Glass ◽  
Specific Heat ◽  
Bulk Metallic Glass ◽  
Gibbs Free Energy ◽  
Specific Heat Capacity ◽  
Undercooled Liquid ◽  
Glass Forming ◽  
Crystalline Mixture

ABSTRACTThe thermodynamics of the bulk metallic glass forming Pd43Ni10Cu27P20 alloy were investigated with differential scanning calorimetry (DSC). The specific heat capacity of the undercooled liquid with respect to the crystalline mixture was measured in the DSC simultaneously with the enthalpy of crystallization over the entire supercooled liquid region. The enthalpy, entropy, and Gibbs free energy change between the liquid and the crystalline mixture was determined from the specific heat capacity data. The calculated enthalpy function closely matched the enthalpies of crystallization that were measured in the DSC, which verifies the validity of the thermodynamic model used. A small Gibbs free energy difference between undercooled liquid and crystalline mixture was found for decreasing temperature in Pd43Ni10Cu27P20 when compared to other glass forming alloys. This reflects a small driving force for crystallization when undercooling this alloy and is the main contributing factor for its high glass forming ability.

A senary TiZrHfCuNiBe high entropy bulk metallic glass with large glass-forming ability

2014 ◽  
Vol 125 ◽  
pp. 151-153 ◽  
Author(s):  
H.Y. Ding ◽  
Y. Shao ◽  
P. Gong ◽  
J.F. Li ◽  
K.F. Yao
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Glass Forming Ability ◽  
High Entropy ◽  
Glass Forming ◽  
Large Glass

Mechanical properties of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high-entropy bulk metallic glass

2016 ◽  
Vol 452 ◽  
pp. 57-61 ◽  
Author(s):  
Y. Tong ◽  
J.C. Qiao ◽  
C. Zhang ◽  
J.M. Pelletier ◽  
Y. Yao
Keyword(s):  
Mechanical Properties ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Entropy

Pd20Pt20Cu20Ni20P20 high-entropy alloy as a bulk metallic glass in the centimeter

2011 ◽  
Vol 19 (10) ◽  
pp. 1546-1554 ◽  
Author(s):  
A. Takeuchi ◽  
N. Chen ◽  
T. Wada ◽  
Y. Yokoyama ◽  
H. Kato ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
High Entropy Alloy ◽  
High Entropy
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