Oxygen determination from cell dimensions in YBCO superconductors

A rapid and simple procedure for the determination of non-stoichiometric oxygen in YBa 2Cu 3O 7− δ (YBCO) superconductors is described, based on the relationship between oxygen content and c-axis parameter of the YBCO structure. To test the proposed method the oxygen content of samples sinterised st...

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Veröffentlicht in:	Journal of crystal growth 2004-09, Vol.269 (2), p.625-629
Hauptverfasser:	Benzi, Paola, Bottizzo, Elena, Rizzi, Nicoletta
Format:	Artikel
Sprache:	eng
Schlagworte:	A1. Oxygen determination A1. X-ray diffraction B1. Cuprates B1. YBCO B2. Superconducting materials Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cuprates superconductors (high tc and insulating parent compounds) Effects of material synthesis, crystal structure, and chemical composition Exact sciences and technology High-Tc compounds Inorganic compounds Physics Structure of solids and liquids crystallography Structure of specific crystalline solids Superconductivity Transition temperature variations Water, oxides, hydroxides, peroxides Y-based cuprates
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Beschreibung
Zusammenfassung:	A rapid and simple procedure for the determination of non-stoichiometric oxygen in YBa 2Cu 3O 7− δ (YBCO) superconductors is described, based on the relationship between oxygen content and c-axis parameter of the YBCO structure. To test the proposed method the oxygen content of samples sinterised starting from different precursors has been calculated from X-ray powder diffraction analysis and compared with the oxygen content obtained by iodometric titration with satisfactory correspondence.
ISSN:	0022-0248 1873-5002
DOI:	10.1016/j.jcrysgro.2004.05.082