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Effect of boron on the magneto-caloric effect in Fe91−x Zr9B x (x = 3, 4, 5) amorphous alloys
- Yu, P., Zhang, J. Z., Xia, L.
- Journal of materials science 2017 v.52 no.24 pp. 13948-13955
- alloys, ambient temperature, boron, entropy, glass, iron, magnetic properties
- In the present work, Fe₉₁₋ₓ Zr₉B ₓ (x = 3, 4, 5) amorphous alloys were employed to study the effect of boron on the magnetic properties of Fe-based amorphous alloys. Thermal and magnetic properties of Fe₉₁₋ₓ Zr₉B ₓ (x = 3, 4, 5) amorphous alloys were measured. Although the amorphous alloys show similar glass forming ability, peak values of magnetic entropy change (−ΔS ₘ ᵖᵉᵃᵏ) and Curie temperature (T c) near room temperature improve significantly with increasing boron content. The improved T c, as well as −ΔS ₘ ᵖᵉᵃᵏ , is due to the enhanced direct interaction between Fe atoms, which is ascertained by the increasing µ ₑff with boron addition in the Fe₉₁₋ₓ Zr₉B ₓ (x = 3, 4, 5) amorphous alloys.