High Entropy Alloys

High Entropy Alloys (HEA) are also known as Multi Principle Elements (MPE) and Complex Concentrated Alloys (CCA). For the purposes of this research we focused on the HEA definition which concentrates on the configuration of molar entropy.

The development of HEAs began with the discovery in the 1990s as an undergraduate research project. Since then, starting in 2004, there has now been over 2,300 publications on the topic.

HEAs are important because they have great mechanical, electrical, thermal, and magnetic properties that can be used for applications such as thin film nitride coatings as diffusion barriers, hydrogen storage, and shape memory alloys which can be used in many industries.