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Title: Study of microstructure and electrical properties of bulk YBCO prepared by melt textured growth technique

Bulk YBCO components were prepared using Melt Texture Growth (MTG) technique. Components were fabricated using MTG by addition of Y{sub 2}BaCuO{sub 5} (Y211) and Ag to YBCO, which leads to improved grain size without affecting superconducting properties. Green compacts prepared by cold isostatic pressing were pre-sintered at 930°C before subjecting melt texturing. Cooling rates lower than 1 °C.h{sup −1} was used, in between (peritectic) temperature of about 995 and 1025°C, to obtain large grained components. Microstructure studies in details were carried out by Scanning Electron Microscope (SEM), Electron Probe Micro Analysis (EPMA), Orientation Imaging Microscope (OIM) and TEM correlated with electrical properties like Critical current density (J{sub c})
Authors:
;  [1] ;  [2] ;  [3] ; ;  [4]
  1. Glass and Advanced Materials Division, Bhabha Atomic Research Centre, Mumbai, INDIA 400 085 (India)
  2. Materials Science Division, Bhabha Atomic Research Centre, Mumbai, INDIA 400 085 (India)
  3. Chemistry Division, Bhabha Atomic Research Centre, Mumbai, INDIA 400 085 (India)
  4. Department of Electric Power Engineering, Budapest Univ. of Technology & Economics, Budapest (Hungary)
Publication Date:
OSTI Identifier:
22490570
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CRYSTAL GROWTH; CURRENT DENSITY; ELECTRON MICROPROBE ANALYSIS; GRAIN SIZE; HIGH-TC SUPERCONDUCTORS; ORIENTATION; SCANNING ELECTRON MICROSCOPY; SUPERCONDUCTIVITY; TEXTURE; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM OXIDES