USA As Represented by Secretary of the Navy

Suok-Min Na

Nicholas J Jones

Paul K Lambert

High entropy alloys (HEAs) are provided, which exhibit a high magnetic entropy change over a large temperature range, as well as methods for making HEAs. The invention also provides HEAs that exhibit notable magnetostriction at room temperature, and alloying methods for producing them. The materials and methods of the invention may be used, for example, in solid-state refrigeration apparatus and methods, as well as in transduction devices and energy harvesting applications.

High-entropy alloys (HEAs), methods for making HEAs, and uses thereof

High entropy alloys (HEAs) are provided, which exhibit hard magnetic properties, including increased saturation magnetization, improved coercivity, and thermal stability at temperatures exceeding about 200° C. Methods of making the HEAs are also provided, as well as methods for using the HEAs, particularly in extreme environments.

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Laurel, MD, United States of America

Suok-Min Na