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Stoichiometry of superconducting YBa2Cu3Oy A comparison of methods for the determination of the Cu(I):Cu(II) ratio

โœ Scribed by Pietro Lanza; Andrea Marzocchi

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
545 KB
Volume
304
Category
Article
ISSN
0003-2670

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โœฆ Synopsis

Two methods for the determination of Cutot, Cuzf and Cu+ in the superconductor YBa,Cu,O, are described. The first one is based on two iodometric titrations. The second one is based on an indirect determination of Cuf after oxidation with Fe3+ and titration with KMnO, of the formed Fe '+ Sources of errors such as incomplete dissolution of the samples and . oxidation by atmospheric oxygen are discussed. Precision and accuracy of the procedures are quoted and the performance of the two methods is compared.

๐Ÿ“œ SIMILAR VOLUMES

Non-contact determination of critical cu
Non-contact determination of critical current densities in a superconducting YBa2Cu3Oy cylinder
โœ C.C. Welch; B.R. Barnard ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 394 KB

The determination of the critical current density (Jc) of a superconducting ceramic is a vital part of the assessment of its suitability for electrical and electronic applications. However, in bulk materials where the current carrying capacity of a test specimen is typically several amps, great care