New thermodynamic interpretation of T curves in glass forming alloys

Chen, Leilei; Zhang, Zhenyu; Xu, Kai; Chang, Keke

doi:10.1016/j.matlet.2021.129415

Cited by 4 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past few decades, CALPHAD-based thermodynamic calculations have attracted considerable attention ( 27 , 28 ). CALPHAD has been used for thermodynamic calculations for both equilibrium ( 29 ) and nonequilibrium systems, such as metastable ( 27 , 28 ) and amorphous phases ( 30 ). To simulate the crystal-glass nano-dual phase, CALPHAD can be used to design the system for a particular chemical composition range, which makes it faster and less costly than the conventional trial-and-error method.…”

Section: Resultsmentioning

confidence: 99%

“…Modeling an amorphous phase is difficult and requires different levels of approximation and theoretical applications of thermodynamic driving force, kinetic barrier, classical nucleation, and amorphous phase growth ( 31 ). In one study, the T 0 curves, which identify where the Gibbs energy of the liquid phase coincides with that of solid solutions, were calculated using the CALPHAD approach to predicting new glass-forming systems and their glass-forming regions ( 30 ). In Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Researchers have used different levels of approximation to consider the thermodynamic driving force, kinetic barrier, classical nucleation, and growth theory of amorphous phases ( 31 ). In this study, we adopted Chen’s interpretation of T 0 curves to predict new glass-forming systems and their glass-forming regions ( 30 ).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

A crystal glass–nanostructured Al-based electrocatalyst for hydrogen evolution reaction

Liu

Zhong

et al. 2022

Sci. Adv.

Self Cite

View full text Add to dashboard Cite

Platinum-based catalysts are widely used in hydrogen evolution reactions; however, their applications are restricted because of the cost-efficiency trade-off. Here, we present a thermodynamics-based design strategy for synthesizing an Al 73 Mn 7 Ru 20 (atomic %) metal catalyst via combinatorial magnetron co-sputtering. The new electrocatalyst is composed of ~2 nanometers of medium-entropy nanocrystals surrounded by ~2 nanometers of amorphous regions. The catalyst exhibits exceptional performance, similar to that of single-atom catalysts and better than that of nanocluster-based catalysts. We use aluminum rather than a noble metal as the principal element of the catalyst and ruthenium, which is cheaper than platinum, as the noble metal component. The design strategy provides an efficient route for the development of electrocatalysts for use in large-scale hydrogen production. Moreover, the superior hydrogen reaction evolution created by the synergistic effect of the nano-dual-phase structure is expected to guide the development of high-performance catalysts in other alloy systems.

show abstract