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Microstructure of the (Nd/Y)-Ba-Cu-O superconductors by floating zone melt growth process  

김소정 (동해대학교 전기전자공학과)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.13, no.2, 2003 , pp. 83-87 More about this Journal
Abstract
$(Nd/Y)_{1.8}Ba_{}2.4Cu_{3.4}O_{7-x}$high $T_c$ superconductor was directionally grown by floating Bone melt growth process with a large temperature gradient in air. Cylindrical green rods of (Nd/Y)1.8 oxides were fabricated by cold isostatic pressing (CIP) method using rubber mold. Microstructures were observed by SEM and TEM and superconducting properties were measured by a SQUID magnetometer. Nonsuperconducting $(Nd/Y)_2BaCuO_5$ inclusions were uniformly distributed within the superconducting $(Nd/Y)Ba_2Cu_3O_x$ matrix. The directionally melt-textured (Nd/Y) 1.8 superconductor showed an onset Tc $\geq$ 90 K and a sharp superconducting transition.
Keywords
(Nd/Y)$_{}$ 1.8/Ba$_{}$ 2.4/Cu$_{}$ 3.4/$O_{7-x}$; Floating zone melt growth process; Cylindrical green rods; (Nd/Y)$_2$BaCuO$_{5}$ inclusion; (Nd/Y)Ba$_2$Cu$_3$Ox matrix;
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  • Reference
1 Effect of 211 inclusion on zone melt textures (RE/Y)-Ba-Cu-O superconductors /
[ S.J. Kim;H.G. Kim ] / Physica C   DOI   ScienceOn
2 Mocrostructure and critical current density of zone melt textured <TEX>$YBa_2Cu_3O_{6+X}$</TEX> /
[ P. McGinn;W. Chen;N. Zhu;M. Lanagan;U. Balachandran ] / Appl. Phys. Lett.   DOI
3 Melt processing of(Nd, Y)BACuO and (Sm,Y)BaCuO composites /
[ P. Schatxle;W. Bieger;U. Wiesner;P. Verges;G. Krabbes ] / Supercond Sci. Technol   DOI   ScienceOn
4 High critical current in Y-Ba-Cu-O supercinductors /
[ S. Jin;T. Tiefel;R. Sherwood;R. van Dover;M. Davis;G. Kammlott;R. Fastnacht ] / Appl. Phys. Lett.   DOI
5 Characterization and superconducting properties of (Sm/Y)-Ba-Cu-O composite oxides by top-seeded melt growth in air /
[ S.J. Kim;K.W. Lee;H.G. Kim ] / J. Crystal Growth   DOI
6 Fabrication of Single Crystal of <TEX>$SmBa_2Cu_3O_{7-X}$</TEX> by the Modified Partical Pressure Atmosphere /
[ M. Nakamura;C. Krauns;Y. Shiohara ] / Jpn. J. Appl. Phys   DOI
7 Melt processing for obataining <TEX>$NdBa_2Cu_3O_y$</TEX> superconductors eith high Tc and large Jc /
[ S.I. Yoo;N. Sakai;H. Takaichi;M. Murakami ] / Appl. Phys. Lett.   DOI
8 electron microprobe analysis and synchrotron diffraction study of crystalline <TEX>$(Nd_{0.5}Y_{0.5})Ba_2Cu_3O_{7-8}$</TEX> /
[ J.W. Cochrane;P.A. Miles;G.J. Russell;G. Foran;D.J. Cookson ] / Physica C   DOI
9 Melt-processed light rare esrth eleement-Ba-Cu-O /
[ M. Murakani;N. Sakai;T. Higuchi;S.I. Yoo ] / Supercond. Sci. Technol   DOI   ScienceOn
10 Transport critical current density and microstructure in extrudec <TEX>$YBa_2Cu_3O_{7-X}$</TEX> wires processed by zone melting /
[ D. Shi;H. Krishnan;J.M. Hong;D. Miller ] / J. Appl. Phys.   DOI