| Summary: | A small amount of Co was added to the Fe<sub>88</sub>Ce<sub>7</sub>B<sub>5</sub> glass forming alloy for the possibility of improving its glass formability and magnetocaloric effect. The Curie temperature of the amorphous Fe<sub>88-<i>x</i></sub>Ce<sub>7</sub>B<sub>5</sub>Co<i><sub>x</sub></i> (<i>x</i> = 0, 1, 2, 3) ribbons increases linearly with the Co content, while the maximum magnetic entropy change (−Δ<i>S<sub>m</sub><sup>peak</sup></i>) increases to 3.89 J/(kg × K) under 5 T at <i>x</i> = 1 and subsequently decreases with further Co addition. The mechanism for the influence of Co addition on magnetic properties and the magnetocaloric effect of the amorphous alloys was investigated. Furthermore, a flattened −Δ<i>S<sub>m</sub></i> profile was designed in the amorphous laminate composed of the amorphous Fe<sub>88-<i>x</i></sub>Ce<sub>7</sub>B<sub>5</sub>Co<i><sub>x</sub></i> (<i>x</i> = 0, 1, 2) ribbons. The high average −Δ<i>S<sub>m</sub></i> from ~287 K to ~320 K indicates the potential application perspective of the amorphous hybrid as a magnetic refrigerant of a domestic refrigerator.
|
|---|