为了解决MgB2单晶制备过程中存在的镁的蒸气压问题和镁的氧化问题,克服传统制备方法中对实验条件要求高,操作过程繁琐的缺点,本文采用高频感应熔炼技术,通过选取两种共晶成分的Mg-Cu和Cu-B合金,成功熔配成Mg25Cu65B10的三元合金.分析结果表明,熔配合金组织中有～40 μm的MgB2相从合金熔体中直接析出,结合热力学分析对MgB2的析出机理进行讨论.
参考文献
| [1] | J Nagamatsu;Norimasa Nakagawa;Takahiro Muranaka .[J].Nature,2001,410:63. |
| [2] | P C Canfield;D K Finnemore;S L Bud'ko;J.E.Ostenson .[J].Physical Review Letters,2001,86:2423. |
| [3] | S Lee .[J].Physica C,2003,385:31. |
| [4] | J Karpinski;S M Kazakov;J Jun;M.Angst,R.Puzniak,A.Wisniewski P.Bordet .[J].Physica C,2003,385:42. |
| [5] | M Angst;R Puzniak;A Wisniewski;J.Jun,S.M.Kazakov,J.Karpinski,J.Roos H.Keller .[J].Physical Review Letters,2002,88:167004. |
| [6] | M. Xu;H. Kitazawa;Y. Takano;J. Ye;K. Nishida;H. Abe;A. Matsushita;N. Tsujii;G. Kido .Anisotropy of superconductivity from MgB_(2) single crystals[J].Applied physics letters,2001(17):2779-2781. |
| [7] | H B Mohamed.[J].Superconductor Science and Technology,2003(16):668. |
| [8] | W Du et al.[J].Crystal Growth,2004,268:123. |
| [9] | X X Xi;X H Zeng;A Soukiassian .Thermodynamics and thin film deposition of MgB_2superconductors[J].Superconductor Science & Technology,2002(3):451-457. |
| [10] | T B Massalski;P R Subramanian;H O Kamoto;L.Kacprzak.Binary Alloy Phase Diagrams[M].ASM International,Materials Park,OH,1990 |
| [11] | D. Souptel;G. Behr;W. Loser .Crystal growth of MgB_2 from Mg-Cu-B melt flux and superconducting properties[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(1/2):193-200. |
| [12] | M E Jones;R E Marsh .[J].Journal of the American Chemical Society,1954,76:1434. |
| [13] | A Guette;R Naslain;P Hagenmuller .[J].Journal of the Less Common Metals,1976,47(01) |
| [14] | Barin I.Thermochemical Data of Pure Substances[M].Weinheim:VCH,1995 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%