# Fragility crossover mediated by covalent-like electronic interactions in metallic liquids **URL:** \ **Category:** News\ **Created:** [April 30, 2024, 3:45pm UTC](https://community.materialssquare.com/t/fragility-crossover-mediated-by-covalent-like-electronic-interactions-in-metallic-liquids/168 "2024-04-30T15:45:35Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![gabriele1](https://yyz1.discourse-cdn.com/flex003/user_avatar/community.materialssquare.com/gabriele1/32/20_2.png) [@gabriele1](https://community.materialssquare.com/u/gabriele1)\ **Post date:** [April 30, 2024, 3:45pm UTC](https://community.materialssquare.com/t/fragility-crossover-mediated-by-covalent-like-electronic-interactions-in-metallic-liquids/168/1 "2024-04-30T15:45:35Z")
This article from Phys org discusses a study on the fragility of metallic liquids, particularly focusing on how electronic interactions influence their behavior. Researchers observed that adding aluminum to certain metallic glasses like La-Ni-Al and Cu-Zr-Al decreases their fragility, a quality measure of how a material’s viscosity changes with temperature. This reduction in fragility was attributed to the formation of covalent-like bonds between aluminum atoms. The study utilized advanced techniques such as rapid calorimetric analysis and electronic structure calculations to uncover these insights, which could help in designing new amorphous materials. For further details, you can read the full article on Phys org: > **[Fragility crossover mediated by covalent-like electronic interactions in...](https://phys.org/news/2024-04-fragility-crossover-covalent-electronic-interactions.html)** > > In the field of glass and liquid sciences, the so-called fragility is a key concept that characterizes how rapidly the liquid dynamics showdown on lowering the temperature. However, a long-standing challenge is that the occurrence of crystallization...