Design of Co-based amorphous alloys with magnetocaloric effect near room temperature
Source abstract
Abstract
In this work, a Co-based amorphous alloy with magnetocaloric effect near room temperature was designed successfully by modulating the chemical compositions. Firstly, the temperature dependence of the magnetization for Co 75-x Mo 10 Si 10 B 5+x (x=5, 10, 15) amorphous ribbons was investigated. The Curie temperature increases linearly from 104 to 343K as the Co content increases from 60 to 70 at. %. Thus, the Co content of 68.5 at. % was chosen, which has a magnetocaloric effect near room temperature. The magnetic entropy change under a maximum applied field of 5 T of Co 68.5 Mo 10 Si 10 B 11.5 amorphous ribbons can reach 0.86 J kg −1 K −1 near 310 K. This work provides a new strategy to regulate the magnetic transition temperature of Co-based amorphous alloys.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Magnetic Properties of Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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