MgB2/Fe带材Jc的各向异性及MgB2芯织构和成分不均一性的研究

低温物理学报 , 2005, 27(z1): 738-744. doi: 10.3969/j.issn.1000-3258.2005.z1.068

MgB2/Fe带材Jc的各向异性及MgB2芯织构和成分不均一性的研究

索红莉 ^1, , 王颖 ^2, , 马红霞 ^3, , 刘丹敏 ^4, , 周美玲 ^5, , ^6, , ^7,

1.国家教育部功能材料重点实验室,北京工业大学材料学院,北京,100022

2.国家教育部功能材料重点实验室,北京工业大学材料学院,北京,100022

3.国家教育部功能材料重点实验室,北京工业大学材料学院,北京,100022

4.国家教育部功能材料重点实验室,北京工业大学材料学院,北京,100022

5.国家教育部功能材料重点实验室,北京工业大学材料学院,北京,100022

6.University of Geneva D.P.M.C, 24 Quai Ernest-Ansermet 1211 Geneva

7.University of Geneva D.P.M.C, 24 Quai Ernest-Ansermet 1211 Geneva

基金项目: 高等学校全国优秀博士学位论文作者专项基金(200331)

关键词：非原位MgB2/Fe超导带 , X-ray衍射拟合分析 , 临界电流密度Jc , 各向异性

STUDY ON THE ANISOTROPY OF CRITICAL CURRENT DENSITIES, TEXTURE AND PHASE INHOMOGENEITY IN MgB2/Fe TAPES

本文研究了在不同磁场方向和温度下非原位Fe包套MgB2单芯带Jc的各向异性,通过对各种工艺条件下带材中MgB2芯的X-ray衍射图进行拟合分析和计算,比较了MgB2芯在Fe-MgB2界面和中心处的织构度和成份不均一性.研究发现带材Jc的各向异性受初始粉末颗粒尺寸的影响.由于受套管材料强度和形变加工工艺的影响,MgB2芯在Fe-MgB2界面处比在中心处有较强的织构.在MgB2-Fe的界面处,700℃淬火样品的X-ray衍射图中发现了由中间相Fe23B6生成的金属间化合物Fe2B.另外还研究了MgB4和MgO等主要杂质相的形成原因.

参考文献

[1]	J Nagamatzu;N Nakagawa;T Muranka;Y Zenitanim,J Akimitzu .[J].Nature,2001,410:63.
[2]	P Kovac;I Husek;Ch Grovenor .Properties of as-deformed and post-annealed MgB_2/Fe(Fe-alloy) composite wires[J].Superconductor Science & Technology,2003(2):292-296.
[3]	H Kitaguchi;A Matzumoto;H Hatakeyama;K Kumakura .[J].Superconductor Science and Technology,2004,17:S486-S489.
[4]	K Yamamoto;K Osamura;S Balamurugan .Mechanical and superconducting properties of PIT-processed MgB_2 wire after heat treatment[J].Superconductor Science & Technology,2003(9):1052-1058.
[5]	W Goldacker;S I Schlachter;B Obst;M Eisterer .[J].Superconductor Science and Technology,2004,17:S490-S495.
[6]	Y Feng;G Yan;Y Zhao;C F Liu X H Liu P X Zhang L Zhou A Sulpice E Mosang B Hebral .[J].Journal of Physics:Condensed Matter,2004,16:1803-1811.
[7]	H Yamada;M Hirakawa;H Kumakura;A Matzumoto H Kitaguchi .[J].Physics Letters,2004,84:1728-1730.
[8]	R Fl kiger;P Lezza;C Beneduce;N Musolino,H L Suo .[J].Superconductor Science and Technology,2003,16:264-270.
[9]	G Grasso;A Malagoli;D Marr;E Bellingeri,V Braccini,S Roncallo,N Scati,A S Siri .[J].PHYSICA C,2002,378-381:899-902.
[10]	R Fl kiger;G Grasso;J C Grivel;F Marti,M Dhall ,Y Huang .[J].Superconductor Science and Technology,1997,10:A68-A92.
[11]	R Fl kiger;H L Suo;N Musolino;C Beneduce,P Toulemonde,P Lezza .[J].Physica C,2003,385:286-305.
[12]	J Rodr guez-Carvajal.Program FULLPROF,Laboratoire L on Brillouin[M].Saclay,France,2001
[13]	R A Young.The Rietveld Method[M].Oxford:Oxford University Press,1993
[14]	C R M Grovenor;L Goodsir;C J Salter .Interfacial reactions and oxygen distribution in MgB_2 wires in Fe, stainless steel and Nb sheaths[J].Superconductor Science & Technology,2004(3):479-484.
[15]	U Herold;U K ster .[J].Zeitschrift fur Metallkunde,1978,69:326-332.
[16]	Y Khan;E Kneller;M Sostarich;Z.Metallkd .[Z].,1982.
[17]	E M Choi;H J Kim;S K Gupta;P Chowdhury,K H P Kim,S I Lee,W N Kang .[J].Physical Review B,2004,69:224510.
[18]	M Angst;R Puzniak;A Wisniewski;J Jun,S M Kazakov,J Karpinski,J Roos,H Keller .[J].Physical Review Letters,2002,88:16.
[19]	R Fl kiger;P Lezza;C Beneduce;N Musolino,H L Suo .[J].Superconductor Science and Technology,2003,16:264-270.

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