DOI QR코드

DOI QR Code

Development of {110}<110> Textured Ag Substrate for YBCO Coated Conductors

{110}<110> 집합조직을 가지는 YBCO 박막 선재용 Ag Substrate 개발

  • 임준형 (성균관대학교 신소재공학과) ;
  • 김정호 (성균관대학교 신소재공학과) ;
  • 지봉기 (한국원자력연구소 원자력재료기술개발팀) ;
  • 장석헌 (성균관대학교 신소재공학과) ;
  • 김규태 (성균관대학교 신소재공학과) ;
  • 주진호 (성균관대학교 신소재공학과) ;
  • 김찬중 (한국원자력연구소 원자력재료기술개발팀) ;
  • 홍계원 (한국산업기술대학교 전기공학과)
  • Published : 2004.01.01

Abstract

We fabricated textured Ag substrates for YBCO coated conductor and evaluated the effects of annealing temperature on microstructural evolution, texture formation, and surface morphology. Ag ingot, as an initial specimen, was prepared by plasma arc melting(PAM). Subsequently, the ingot was cold rolled to 100 ${\mu}{\textrm}{m}$ thick tape and annealed at temperatures of 600-80$0^{\circ}C$. The texture and surface morphology of the substrate were characterized by pole-figure and atomic force microscopy(AFM) profile, respectively. It was observed that a strong {110}<110> texture was formed after annealing and its symmetry improved as annealing temperature increased. The full-width at half-maximum(FWHM) of {110}<110> pole was as sharp as 10$^{\circ}$ for the substrate annealed at 80$0^{\circ}C$. On the other hand, it was found that the thermal grooving and faceting became remarkable as annealing temperature increased : root-mean-square(RMS) roughness of the substrate annealed at 80$0^{\circ}C$ was 39.2 nm. The substrate of strong texture and smooth surface, fabricated in our study, is considered to be suitable for use as a substrate for the epitaxial deposition of superconductor film.

References

  1. Appl. Phys. Lett. v.67 Properties of $YBa_2Cu_3O_7$ thick films on flexible buffered metallic substrates X.D.Wu https://doi.org/10.1063/1.114559
  2. Appl. Supercond. v.4 Biaxially aligned YBCO film tapes fabricated by all pulsed laser deposition K.Hasegawa https://doi.org/10.1016/S0964-1807(97)00035-5
  3. Appl. Phys. Lett. v.67 Fabrication of long range, biaxially textured high temperature superconducting tapes A.Goyal
  4. Micron v.30 Texture formation and grain boundary networks in rolling assisted biaxially textured substrates and in epitaxial YBCO films on such substrates A.Goyal;S.X.Ren;E.D.specht;D.M.kroeger;R.feenstra;D.Norton;M.paranthaman;D.F.Lee;D.K.Christen https://doi.org/10.1016/S0968-4328(99)00047-5
  5. Supercond. Sci. Technol. v.11 Cube-textured nickel substrates for high-temperature superconductors E.D.Specht;A.Goyal;D.F.Lee;F.A.List;D.M.kroeger;M.paranthaman;R.K.Willams;D.K.Christen https://doi.org/10.1088/0953-2048/11/10/009
  6. Acta. Mater. v.49 Cube textured nickel alloy tapes as substrates for $YBa_2Cu_3O_{7\;δ}$ coated conductors B. De Boer;T.G.Eickemeyer;N.Reger;L. Fernandez G.R.;J.Ritcher;B.holzpfel;L.Schultz;W.Prusseit;Berberich https://doi.org/10.1016/S1359-6454(01)00041-6
  7. Materials Science and Engineering v.B56 Epitaxial $YBa_2Cu_3O_7$ films on rolled-textured metals for high-temperature superconducting application D.P.Norton;C.Park;C.Prouteau;D.K.Christen;M.F.Chisholm;J.D.Budai;S.J.Pennycook;A.Goyal;E.Y.Sun;D.F.Lee;D.M.Kroeger;E.Specht;M.Paranthaman;N.D.Browning
  8. Appl. Phys. Lett. v.62 In-plane epitaxial alignment of Ba2Cu307-X films grown on silver crystals and buffer layers Budai,J.D.;Young,R.T.;Chao,B.S. https://doi.org/10.1063/1.109565
  9. Physica C v.301 In-plane aligned $YBa_2Cu_3O_{7\;δ}$film on the MgO buffered Ag (100) substrate and {100}[001] cubic textured silver tape Yusuke Niiori;Yasuji Yamada;Izumi Hirabayashi;Tetsuo Fujiwara;Kazutoshiyama https://doi.org/10.1016/S0921-4534(98)00159-2
  10. Physica C v.328 A new direct process to prepare $YBa_2Cu_3O_{7\;δ}$ films on biaxially textured Ag {110}<211> Rongping Wang;Yueliang Zhou;Shaohua Pan;Meng He;Zhenghao Chen;Guozhen Yang https://doi.org/10.1016/S0921-4534(99)00487-6
  11. Supercond. Sci Technol. v.13 Stable {110}<112> textured Ag ribbons for biaxially - aligned $YBa_2Cu_3O_{7\;x}$ HongLi Suo;Jean-Yves Genoud;Michael Schindl;Eric Walker;Thomas Tybell;Francois Cl'eton;Meiling Zhou;Rene Flukiger https://doi.org/10.1088/0953-2048/13/7/302
  12. Supercond. Sci Technol. v.13 Control of texture in Ag and Ag-alloy substrates for superconducting tapes T.A.Gladstone;J.C.Moore;B.M.Henry;S.Speller; C.J.Salter;A.J.Wilkinson;C.R.M.Grovenor https://doi.org/10.1088/0953-2048/13/9/319
  13. Supercond. Sci Technol. v.13 {110}<110> textured Ag ribbons for biaxially aligned YBa2Cu3O7-x coated conductor tapes J.J.Wells;J. L. MacManus Driscoll;J.Y.Genoud;HLSuo;E.Walker;RFlukiger https://doi.org/10.1088/0953-2048/13/9/318
  14. Physica C v.333 A study on textured silver tapes used as substrates for YBCO high temperature superconductors Danmin Liu;Meiling Zhou;Yancao Hu;Tieyong Zuo https://doi.org/10.1016/S0921-4534(00)00086-1
  15. IEEE Trans. Appl. Supercond, v.11 no.1 Preparation of {110} textured Ag ribbons for biaxially aligned superconducting tapes Jean-Yves Genoud;Hong Li Suo;Michael Schindl;Emilio Bellingeri;Thomas Tybell;Eric Walker;Rene Flukiger https://doi.org/10.1109/77.919785
  16. Materials Science and Engineering A v.238 Current issues in recrystallization R.D.Doherty;D.A.Hughes;F.J.Humphreys;J.J.Jonas;D. Juul Jensen;M.E.Kassner;W.E.King;T.R.Mcnelley;H.J.Mcqueen https://doi.org/10.1016/S0921-5093(97)00424-3
  17. Journal of Catalysis v.182 The correlation of subsurface oxygen diffusion with variations of silver morphology in the silver-oxygen system Anton J. Nagy;G.Mestl;D.Herein;G.Weinberg;E.Kitzelmann;R.Schlogl https://doi.org/10.1006/jcat.1998.2388