Effect of Si Addition on Glass-forming and Magnetocaloric Effect in CdCoAl Bulk Glassy Alloys
Abstract: In this work, the Gd-Co-Al-Si bulk glassy alloys were synthesized by suck-cast method. The structure, thermal stability and magnetism of the alloys were taken by the X-ray diffraction (XRD), differential scanning calorimetry (DSC) and physical property measurement system (ppms) analysis. It is found that micro content of Si addition can extend the supercooled liquid region (ΔTx). As the result, the glass-forming ability (GFA) of the Gd-based alloys dramatically increased. The alloys also exhibit large magnetocaloric effect (MCE), ie, having the magnetic entropy change (ΔSm) of 9.2 J kg-1 K-1 and the regrigerant capacity (RC) of 800 J kg-1.
文章引用: 李荨 , 沈宝龙 (2011) Si添加对GdCoAl系合金非晶形成能力和磁热效应的影响。 材料科学， 1， 52-55. doi: 10.12677/ms.2011.12010
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