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Related Experiment Video

Updated: Jun 4, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Competing structural orders frustrate crystallization in a metallic glass.

Xin Zhang¹, Fujun Lan², Hongbo Lou^3,4

¹Shanghai Key Laboratory of Material Frontiers Research in Extreme Environments (MFree), Shanghai Advanced Research in Physical Sciences (SHARPS), Pudong, Shanghai, PR China.

Nature Communications

|June 2, 2026

Summary

Structural frustration in metallic glasses influences their stability. This study reveals how heating rates affect crystallization versus amorphous transitions, offering insights into glass formation.

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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

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Area of Science:

Materials Science
Condensed Matter Physics
Physical Chemistry

Background:

Structural frustration is key to glass formation, but difficult to quantify.
Understanding this frustration is crucial for designing stable metallic glasses.

Purpose of the Study:

To investigate structural evolution in a metallic glass (Cu46Zr42Al7Y5) during heating.
To understand the role of structural frustration in glass transition and crystallization.

Main Methods:

In-situ high-temperature synchrotron X-ray diffraction.
Differential scanning calorimetry (DSC) at various heating rates.
Analysis of medium- and short-range order.

Main Results:

Identified a heating-rate-dependent crossover between crystallization and amorphous-amorphous transitions.
Observed competition between local ordering and crystal-like ordering.
Provided experimental evidence for structural competition frustrating crystallization.

Conclusions:

Structural competition governs glass transition and crystallization pathways.
This competition is crucial for stabilizing the glassy state in metallic glasses.
Offers fundamental insights into structural frustration and stability in metallic glasses.