Published June 2005 | Version v1
Journal article Metadata-only

Accurate determination of the composition of Y-Ba-Cu-O superconductor by spectrophotometry, gravimetry and flame AAS

Creators

  • 1. Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281(S3), 9000 Ghent (Belgium)
  • 2. Departement Industriele Wetenschappen, Hogeschool Gent, Schoonmeerstraat 52 9000 Ghent (Belgium)

Description

A procedure for the accurate analytical determination of yttrium, barium and copper in an YBa2Cu3Ox superconductor is described. After dissolution of the material the concentration of Y and Cu was spectrophotometrically determined as an Y-Arsenazo III and a Cu-Nitroso-R-salt complex, respectively. Ba was determined either gravimetrically as BaCrO4, after precipitation using a K2CrO4 solution or using flame atomic absorption spectroscopy (AAS). An accuracy better than 0.7% and a coefficient of variation better then 1.2% are obtained. It is illustrated that this analytical procedure can be used to determine the composition of a bulk superconducting YBa2Cu3Ox sample. For determination of Ba in thin films we suggest the use of flame AAS, with an accuracy of 0.03% and a coefficient of variation of 1.7%

Availability note (English)

Available online at http://stacks.iop.org/0953-2048/18/907/sust5_6_019.pdf or at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-2048/18/907/sust5_6_019.pdf; http://www.iop.org/;
DOI
10.1088/0953-2048/18/6/019;
PII
S0953-2048(05)92793-0;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
18
Journal Issue
6
Journal Page Range
p. 907-911
ISSN
0953-2048
CODEN
SUSTEF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36095989
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION SPECTROSCOPY; ARSENAZO; BARIUM COMPOUNDS; CHROMATES; COPPER OXIDES; CUPRATES; GRAVIMETRY; NITROSO-R SALT; SPECTROPHOTOMETRY; SUPERCONDUCTORS; THIN FILMS; YTTRIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; AROMATICS; ARSONIC ACIDS; AZO COMPOUNDS; CHALCOGENIDES; CHROMIUM COMPOUNDS; COPPER COMPOUNDS; FILMS; HYDROXY COMPOUNDS; NAPHTHOLS; NITROSO COMPOUNDS; ORGANIC ACIDS; ORGANIC ARSENIC COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHENOLS; POLYPHENOLS; REAGENTS; SPECTROSCOPY; SULFONIC ACIDS; TRANSITION ELEMENT COMPOUNDS