Wet chemical determination of the oxygen content in YBa2Cu4Ozsamples synthesized by various methods
- 1 August 1995
- journal article
- Published by IOP Publishing in Superconductor Science and Technology
- Vol. 8 (8) , 673-675
- https://doi.org/10.1088/0953-2048/8/8/012
Abstract
The oxygen contents in YBa2Cu4Oz samples have been determined by two wet chemical redox methods, i.e. by Coulometric and iodometric titrations. Three different samples, synthesized by sol-gel, LiF catalyst and O2 hot-isostatic-press (HIP) techniques, are studied. The results of the two titration methods agree well with each other for all samples. The oxygen content z appears to be dependent on the oxygen pressure applied during the synthesis, since z values slightly below the stoichiometric number of 8.00 have been obtained for the samples prepared under 1 atm oxygen pressure, while for the O2 HIP treated sample the observed oxygen content is Z=8.00+or-0.01.Keywords
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