Published June 2002 | Version v1
Journal article Metadata-only

Superconducting YBCO (Tc(0)=92 K) and Bi-2223 (Tc(0)=110 K) thick films on polycrystalline Ba2LaHfO5.5: a new perovskite ceramic substrate

Creators

  • 1. Regional Research Laboratory (CSIR), Trivandrum (India)
  • 2. School of Pure and Applied Physics, M.G. University, Kottayam (IN)
  • 3. Regional Research Laboratory (CSIR), Trivandrum (IN)

Description

Ba2LaHfO5.5 (BLHO) has been developed as a new ceramic substrate suitable for both YBa2Cu3O7-δ (YBCO) and (Bi,Pb)2Sr2Ca2Cu3Ox (Bi-2223) superconductors. BLHO has a complex cubic perovskite (A2BB'O6) structure with lattice constant a=8.395 A. The DTA studies revealed that there is no phase transition occurring in BLHO material in the temperature range of 30-1200 deg. C. The dielectric constant and loss factor values of BLHO are in a range suitable for its use as a substrate material for microwave applications. YBCO and Bi-2223 superconductors do not show any detectable chemical reaction with BLHO even under extreme processing conditions. The thick films of YBCO dip-coated on polycrystalline BLHO substrate gave Tc(0) of 92 K and Jc of ∼1.1x104 A cm-2. The Bi-2223 thick films dip-coated on polycrystalline BLHO substrate gave Tc(0) of 110 K and Jc of ∼3x103 A cm-2. The YBCO and Bi-2223 thick films had excellent adhesion on polycrystalline BLHO substrate. (author)

Availability note (English)

Available online at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://www.iop.org/;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
15
Journal Issue
6
Journal Page Range
p. 907-912
ISSN
0953-2048

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
33021122
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BARIUM OXIDES; BISMUTH OXIDES; CALCIUM OXIDES; CUPRATES; HIGH-TC SUPERCONDUCTORS; LEAD OXIDES; STRONTIUM OXIDES; SUBSTRATES; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FILMS; LEAD COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS; YTTRIUM COMPOUNDS