Heterogeneous equilibrium between YBa2Cu3O7-δ and oxygen gas studied by a kinetic approach

• Published in: Journal of materials chemistry Vol. 3; no. 4; pp. 421 - 426
• Main Authors: CELLUCCI, F, CIGNINI, P. L, GOZZI, D, TOMELLINI, M
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 1993
• Subjects: Chemistry; Exact sciences and technology; Inorganic chemistry and origins of life; Kinetics and mechanism of reactions; Chemical equilibrium; Superconducting materials; Oxygen; Non stoichiometric compound; Transition metal Compounds; Arrhenius equation; Activation parameter; Lanthanide Compounds; Rate constant; Thermodynamic properties; Alkaline earth metal Compounds; Barium Copper Yttrium Oxides Mixed

The kinetic behaviour of the YBa2Cu3O7-delta system was investigated using a 'T-jump' experiment, involving a displacement of the thermodynamic system from equilibrium by a temperature jump. The subsequent relaxation process was followed by means of resistivity measurements. Kinetic models...