利用铜模吸铸法制备了Gd60Co26Al14非晶合金.采用示差扫描量热法(DSC),X射线衍射(XRD)和超导量子磁强计(SQUID)研究了其结构与磁热性能.XRD分析表明:铸态Gd60Co26Al14合金是完全的非晶结构;DSC测试显示Gd60Co26Al14合金在加热过程中在571 K发生玻璃化转变,并且出现了两个结晶温度,分别是602 K和642 K.SQUID测试结果表明:Gd60Co26Al14合金出现两个居里温度,分别是82 K和128 K;合金在外磁场5 T下82 K处的磁熵变达到7 J·(kg·K-1).
参考文献
| [1] | Peker A;Johnson W L .[J].AppHed Physics Letters,1993,63(17):2342. |
| [2] | 秦秀娟.Zr41.5Ti14CU13Ni10Be22.5大块非晶的耐蚀性能[J].腐蚀科学与防护技术,2003(01):52-53. |
| [3] | Kim K S;Min S G;Yu S C et al.[J].Journal of Magnetism and Magnetic Materials,2006,304:e642. |
| [4] | Tishin A M .[J].Journal of Magnetism and Magnetic Materials,2007,316:351. |
| [5] | Zhuang Y H;Li J Q;Huang W D et al.[J].Journal of Alloys and Compounds,2006,421:49. |
| [6] | Fujieda S;Fujita A;Fukamichi K et al.[J].Journal of Alloys and Compounds,2006,408-412:1 165. |
| [7] | Fukamichi K;Fujita A;Fujieda S .[J].Journal of Alloys and Compounds,2006,408-412:307. |
| [8] | Luo Q;Zhao D Q;Pan M X et al.[J].Applied Physics Letters,2006,89:081 914. |
| [9] | Shen T D;Schwarz R B;Coulter J Y et al.[J].Journal of Applied Physics,2002,91(08):5240. |
| [10] | Liang L;Liu X;Wu Y et al.[J].Journal of Alloys and Compounds,2008,457(1-2):541. |
| [11] | Jo Chol-Lyong;Xia Lei;Ding Ding .Glass formation ability, structure and magnetocaloric effect of a heavy rare-earth bulk metallic glassy Gd_(55)Co_(20)Fe_5Al_(20) alloy[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):18-21. |
| [12] | Foldeaki M.;Gopal BR.;Bose TK.;Liu XY.;Barclay JA.;Chahine R. .Effect of sample preparation on the magnetic and magnetocaloric properties of amorphous Gd70Ni30[J].Journal of Applied Physics,1998(5):2727-2734. |
| [13] | Wang W H;Dong C;Shek C H .[J].Material Science Engineering:R:Reports,2004,44(2-3):45. |
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