A Study on the Characteristics of Ideal Glass State via Denary High Entropy Metallic Glasses

In the field of metallic glasses, the ideal glass state has attracted special attention because it is expected to have exceptional characteristics of high mechanical strength based on its unique atomic structure. The unique structure is characterized by high diversity in local structure, which means that it is not dominated by particular motifs. Even though it is suggested that mixing a large number of elements with different atomic sizes is a way to fabricate ideal metallic glass, there is a lack of research on proving the ideal glass state experimentally. In this study, we designed high entropy metallic glasses (HE-MGs) with 10 different elements to make the atomic structure close to the ideal glass state. Using these HE-MGs, we studied the various characteristics of ideal glasses, such as medium range ordering (MRO) structure, mechanical and thermal response, and crystallization behavior. We expect that the results enhance the insight into the ideal glass state in terms of atomic structural characteristics, unique mechanical properties, and abnormal crystallization behaviors.